Saturday, 4 June 2011

The Curious Case of Stephen Hawking

Countless newspaper articles compare him to Einstein.
Numerous others remind us that he held the Lucasian Professorship at Cambridge, “formerly held by Isaac Newton”. In an episode in Star Trek, he appears on the spaceship’s holodeck playing cards with both Newton and Einstein – and wins.
Clearly, in the echelons of scientific achievement, Stephen Hawking is at the pinnacle, with the greatest of the great.

Or is he really?
Let’s do a little comparison.

Newton can safely be called the father of theoretical physics.
While scientists like Galileo and Kepler underscored the importance of experiments and observations to understand the world, Newton pioneered the use of mathematical modelling to explain observed phenomena and predict new ones.
His most famous achievement was formulating his laws of motion, and the inverse square law of gravity which explained both the fall of an apple and the orbit of the moon and planets with unprecedented accuracy.
In the process, he also invented Calculus – undoubtedly the most influential branch of mathematics we have seen in the last five centuries.
Newton’s book, Principia Mathematica, triggered a revolution in human thought, revealing the universe as amenable to human understanding through mathematical laws.

In 1905, Einstein unified Newtonian mechanics with Maxwell’s theory of electromagnetism through his special theory of relativity, which made highly unintuitive, but completely correct predictions.
A decade later, he went even further, to create the general theory of relativity – a truly revolutionary theory that unified Newton’s law of gravity with special relativity by showing that gravity was the result of the curvature of space-time due to matter and energy.
General Relativity is one of the great pillars of modern physics, subsuming Newton’s laws of gravity and predicting a plethora of new phenomena – from black holes to the Big Bang.
Einstein also made very significant contributions to Quantum Mechanics, the other great pillar of modern physics. Most notably, he was the first to analyze light as a stream of particles rather than a wave.

Now for Stephen Hawking.
Fundamental areas of science established? None.
Influential new branches of math invented? None.
Any new fundamental particles predicted, as in the case of Paul Dirac? Nope.
How about a revolutionizing to an existing theory, like Richard Feynman? Not at all.
Don’t mean to rude or anything, but what has he done, then?

Two things, mainly.
In the late 1960’s, Roger Penrose proved a theorem to the effect that under certain conditions, general relativity predicts the occurrence of “singularities” – points in space where the laws of physics break down.
Hawking applied Penrose’s results to cosmological models, showing that under generic assumptions the point of origin of the Universe – the “moment of creation”, so to speak – is a singularity. Note that this is not a new theory, but a mathematical theorem derived from an existing theory (general relativity).

In 1974, Hawking proved the result which made him famous.
Using results from quantum field theory, he showed that black holes radiate energy and eventually evaporate. This created a huge stir, because black holes were by definition, objects from which nothing could escape, not even light. This was a strong indication that combining general relativity with quantum field theory could lead to unexpected results.
Hawking’s result has never been experimentally verified, but is accepted as true. Other scientists arrived at the same conclusion from a several different approaches, and the result explains a number of other theoretical issues in the field.

Impressive contributions? Certainly.
Worthy of a Nobel prize? Possibly.
Comparable to Newton and Einstein? Not by a very long run.
Then why is Hawking thus compared in the media? How has he gained a level of public prominence completely disproportionate to his actual achievements?
Why did his popular book, A Brief History of Time, top the New York Times bestseller list for three months straight, despite the fact that most readers claimed not to understand it?

Many think it is due to his physical condition which gets media attention– Hawking has been paralyzed by motor neuron disease since his early twenties.
In my opinion, the real answer lies elsewhere.

Grandiose Claims

Most great scientists are noted for their profound humility in the face of the universe.
The famous quote of Newton, comparing himself to a little boy playing on the shore of the ocean of knowledge comes to mind.
Now let’s hear Hawking:
“My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.”

A simple goal indeed!! This is not an isolated statement.
In my view, audaciously grandiose claims like these play a key role in explaining Hawking’s arc to scientific superstardom.
While most popular science books are content to explore the wonders of the Universe and explain some of their workings, A Brief History of Time promises nothing less than an Ultimate Understanding – an answer to all the biggest questions ever asked my mankind.

In the book, Hawking claims that we are on the verge of a revolution in our understanding of the cosmos – not just any revolution, but the one to end them all.
We are on the verge of completing our quest to understand the ultimate laws of the universe, says Hawking. We will soon be in possession of a Theory of Everything – a grand unifying principle that subsumes all of physics and explains all features of the cosmos hitherto unknown, including the physical properties of all the fundamental particles, the forces and interactions between them and even the underlying structure of space and time.

What will follow thereafter is nothing short of intellectual Nirvana:
“If we do discover a complete theory.... we shall all be able to take part in the discussion of the question of why it is that we and the universe exist. If we find the answer to that, it would be the ultimate triumph of human reason — for then we would know the mind of God.”
A parenthetic claim – never directly made by Hawking, but widely inferred by the media and lay public – is that he would be the one to achieve this ultimate triumph of reason.



The grand vision promulgated by Hawking is, of course, vastly misleading.
Even if a unified theory of physics is found, its real applications will be primarily in esoteric realms far beyond the reach of experiment or observation, such the centres of black holes and the moment of the Big Bang. While this would certainly be impressive, the discussion of "why it is that we and the universe exist” has proceeded quite far without it.
Our current theories of physics, while incomplete and partial, have nevertheless been very successful in explaining how the world around us emerged from the blazing radiation of the Big Bang. Most areas of physics itself, let alone the other sciences, would not be impacted at all by the discovery of a “complete theory”.

Furthermore, Hawking’s own role in unifying physics has been minimal.
Currently, the most popular approach for unification is String Theory. If it succeeds in producing a Theory of Everything – a very big ‘If’ – the mantle of Einstein would pass to Edward Witten. Vastly respected within the theoretical physics community for his path-breaking contributions and insights, Dr. Witten is virtually unknown to the common man due to his preference for sticking to science rather than airing extravagant claims.

Hawking has never been at the forefront of the unification program, or even a significant contributor. But his starry eyed vision of the imminent arrival of the unified theory, his self declared goal of “complete understanding of the universe”, his constant references to God in his popular books and public lectures, has given the quest of unify physics an almost religious significance in the public psyche – with the Theory of Everything as God and Stephen Hawking as It’s soon-to-be prophet.

Unfortunately, scientific gurus, unlike religious ones, must test their claims against reality.
So how has Hawking fared?

The Rather Pathetic Design

It is now past 22 years since A Brief History of Time was written and over three decades since Hawking’s first public pronouncement that the end of physics was imminent.
The unified theory is nowhere in sight, and while string theorists keep ploughing on and claiming progress, their best efforts are yet to yield a single experimental prediction.

It is also becoming abundantly clear that even if a unified theory is eventually discovered, Stephen Hawking’s name will not figure on the credits list.
Hawking seems to be having trouble digesting this fact – his strategy is to alternate between suggesting that no unified theory is possible (sour grapes, anyone?) and declaring that it has already been found (no way).

His latest popular book, The Grand Design, is a good example of this.
He starts by saying that there may be no unified theory of physics, but just a bunch of “observer dependent theories”, whatever that means. The next moment, he is spinning on a dime to declare that “M-theory” is the unified theory.
Furthermore, apparently, M-theory predicts that the universe can spontaneously originate from absolute nothingness, so God is not necessary (once again God appears to help Hawking make headlines and sell copies).
So there! Dr. Hawking has Explained It All. Hip, hip, hooray!

Nobody is convinced.
Because M-theory makes no predictions. The reason being that nobody even knows what M-theory is.
Let me explain.

In 1995, Dr. Edward Witten whom we saw earlier, demonstrated the presence of a number of “dualities” between various versions of string theory – roughly speaking, a difficult problem in one version could be translated into an easy one in another version.
This led to the hope that all the string theories were special aspects of a greater theory subsuming them all, which was termed “M-theory”.
In Witten’s own words: “The M stands for magic, mystery or matrix according to taste”.
Thus M-theory is a hypothetical theory which may exist – not an existing theory with concrete predictions.

Similarly, the spontaneous origin of the universe is not a prediction of any theory we have – it is merely speculated that a unified theory of physics which merges general relativity and quantum mechanics might allow something like this to happen.
The “grand design” revealed by Hawking is, thus, misleading on many levels.
Much like religious gurus who refuse to admit a mistake, Hawking attempts to “explain it all” through obfuscation and incorrect statements.

So, where does this leave us?
In my view, with a lesson that we keep forgetting despite endless reminders.
We humans are very small creatures in an incredibly vast Universe and our attempts to unravel its mysteries work best when we work sincerely to answer small questions.
It is only by carefully knitting together the answers to those little questions that the big picture slowly emerges.
By contrast, whenever an individual pompously proclaims an “Answer to Life, The Universe and Everything”, it inevitably turns out to be incorrect or a meaningless 42.

Serious students and followers of science would do well to ignore the self-aggrandizing hype of Stephen Hawking, our media-made “Einstein”, and heed the words of the real one:
“Enough for me an inkling of the marvellous structure of Reality, the endeavour to comprehend a portion, be it ever so tiny, of the Reason that manifests itself in Nature.”

Thursday, 24 February 2011

AI Is Creeping Up On You

In movies, Artificial Intelligence, aka AI, always arrives with a bang.
The machines wake up, realize their power and immediately launch a nuclear holocaust or trap us in the Matrix or something similarly
unpleasant. I strongly suspect this will never happen. Instead, as the decades go by, we will increasingly be surrounded by AI at many levels – while vigorously insisting all through that it’s “no big deal”.

A milestone for artificial intelligence was achieved last week in a three-day Jeopardy contest held from February 14 – 16. For those unfamiliar with Jeo
pardy, it is a version of our beloved Quiz contests, with some differences.
For one, the clues are often presented in deliberately convoluted language, often with more than one meaning. As a further twist, the quizmaster presents the question as an “answ
er”, and the contestant must present the answer as a “question”.
For instance, rather than asking “Who wrote Hamlet and Macbeth?” the host will say, “This is the author of Hamlet and Macbeth” and the contestant will answer “Who is Shakespeare?”
Rather than the straightforward scoring system of quizzes, each clue comes with a “d
ollar value”, which is added or deducted to the contestant’s total depending on their answer.
There are also several “Daily Double” clues, where the contestant can wager a sum of money all the way up to their total “earnings” till that point.

The score of the contestant is the total amount of “money accumulated”.


The tournament last week featured two superstars of the Jeopardy world – Brad Rutter, the biggest all-time money winner on the show, and Ken Jennings, record holder for the longest championship streak.

But the spotlight was on the non-human entrant, Watson – a supercomputer designed by IBM running natural language processing software.
The clues were sent to Watson as a text message at exactly the same time they were made visible to the other contestants. Watson would have to unravel the language in the clue, find the answer, and press the buzzer before the other contestants did to have a chance at scoring.


The first day of the match on Feb 14 ended with Watson and Rutter tied at $50
00 with Jennings trailing at $2000. The internet was abuzz with theories about how the champions were merely “warming up” before trouncing the machine over the next two days.
All such speculations were crushed on Day Two, which ended with Jennings at $4,800, Rutter at $10,400… and Watson massively ahead with $35,734 !

The final day ended with Jennings at $24,000, Rutter at $21,600 and Watson at $77,147 – a thoroughly convincing victory.

The answer to “Jeopardy world champion” is now “Who is Watson?”


Apart from the immense entertainment, a pleasant aspect of the program was the graceful acceptance of defeat by the humans. The affable Ken Jennings even quipped, “I, for one, welcome our computer overlords.”


This was a marked contrast to the acrimonious ending of a similar Man vs. Machine event fourteen years earlier, when IBM supercomputer Deep Blue defeated world chess champion Garry Kasparov in a 6 game match played in 1997.

Kasparov proved to be a very poor loser – storming away after the last game, b
eing conspicuously absent at the prize distribution ceremony and accusing the IBM team of cheating.
IBM retaliated by refusing a re-match and decommissioning Deep Blue.

The whole episode remains mired in controversy and bad feeling.


Computer chess advanced considerably over the next decade.

In November 2006, the reigning world champion Vladimir Kramnik played Deep Fritz.

In contrast to Deep Blue which was specially designed software running on a customized supercomputer, Fritz was a commercially available program running on a high-end laptop.

Nevertheless, the computer won the 6 game match with 2 wins and 4 draws.


Since then, interest in human-computer chess matches has waned. Though not proved by actual play, it is quietly acknowledged that today’s best chess programs like Rybka running on a supercomputer would trounce any human chess player.


Lame Excuses

What amuses me about both the Watson and Deep Blue incidents is the subsequent proliferation of excuses from the human side for why these incidents were “nothing special” and “not really artificial intelligence”. The excuses fall into roughly four categories, which I list below in decreasing order of silliness, along with my responses.


Excuse 1:
“Deep Blue and Watson were both supercomputers with top end hardware. So it’s no big deal that they could do what they did”
Response:
And your point is? I can similarly imagine a rabbit saying, “It’s no big deal that humans are so intelligent, given their big brains and all.”
The power of the hardware is part of what makes the system impressive. I agree that Watson wouldn’t have won if it was running on a laptop, but I can bet you that Jennings wouldn’t do too well after a frontal lobotomy either.

Also note how quickly we jump from “A computer can never do X” to “It’s no big deal that a computer can do X”!!


Excuse 2:
“The computer isn’t really thinking. It is only doing what its program tells it to do”
Response:
This is in strong competition for the silliness top spot.
If a human had beaten the world chess champion, would you have agreed that he or she was thinking?

Conversely, why not argue that when Kasparov plays “he isn’t really thinking. He is only doing what the firing of neurons in his brain tells him to do”?


Excuse 3:
“The computer has no credit in this. The credit belongs entirely to the humans who programmed it”
Response:
No wait, it’s not the credit of the programmers at all, but of the genes and environment that shaped their brains. No wait, actually all credit is due to the process of evolution which shaped those genes. No wait…
See how this goes?

My point is, if we follow any consistent standard for giving credit, we should certainly congratulate the programmers who for designing Watson or Deep Blue, but after that we must credit the systems for their subsequent performance.


Excuse 4:
“Computers may be able to play chess and win Jeopardy, but they cannot invent new technology or compose music or *fill in the blanks*”
Response:
The sentence above is missing a “Yet” at the end.

One must remember that the first ‘computers’ in society were not machines, but a group of people, mostly women, working in science laboratories. They were so called because of their ability to perform complex arithmetic accurately and repeatedly – an ability much valued and taken to indicate great mental stamina.

Fifty years ago, anyone would have agreed that playing chess well required intelligence, and a high degree of intelligence, at that.

Talking computers which understand language have traditionally been science-fiction territory – a hallmark of intelligent machines and droids of the far future.


But every time real computers reach one of these milestones, the significance of the event is denied and the bar of “true intelligence” reset several notches higher.

The current list of “what computers can never do” includes “appreciating poetry” and “falling in love”. True, perhaps, but the question is, do they need to?

The goal of AI is not to create artificial humans, any more than the goal of aircraft designers is to create a machine which flaps its wings and lays eggs.


I personally believe that Artificial Intelligence will not take the form of an all-encompassing, godlike Supermind, so beloved of science fiction authors and fans.
Instead, as the centuries roll on, we will see a proliferation of specialized applications tailored to specific tasks, that we would definitely call intelligent, but our descendants may not.
Ultimately, the only remaining special feature of human intelligence may be the ability to invent excuses for why we are special!

Sunday, 30 January 2011

Male and Female

We are all half-human. Think about it.

Imagine an alien zoologist who abducts one of us to conduct a biological study of the human species. However judiciously chosen, the sample will lack one major organ system and some attendant secondary characteristics. Furthermore, our inquisitive alien will be at a loss trying to figure out how the species propagates.

Much ado about little has been made in human society over the “inexorable differences between male and female” – from different dressing conventions to different
expectations about career and lifestyle.
In fact, some philosophers have gone so far as to explain the entire Universe as the interaction of “male and female principles” – Shiva and Shakti, Yin and Yang.This is, of course, one of the many examples where over-extrapolating from the human condition leads to complete nonsense. The “principles” governing the Universe are impersonal mathematical laws which know nothing of male, female or transgender.

All right then, what about the biosphere?
Aren’t male-female distinctions fundam
ental to the living world? Hardly.

Let’s start at the very beginning – with microorganisms.

In case that’s too humble a beginning for you, consider the fact that at least 50% of the Earth’s biomass consists of bacteria alone, and for 85% of its history, life on Earth was nothing but microorganisms.
There are no genders in the unicellular world.

Virtually all microorganisms reproduce asexually – splitting into clones which mutate slowly over the
ages. Among bacteria, a pair of creatures will sometimes come together to exchange genetic material, but this is not connected to reproduction.

Still too microscopic for you? Then let’s consider the green world of autotrophs.

Plants are the basis of the biosphere, converting the energy of sunlight into useful forms which all other creatures can process.

An alien botanist would face none of the “incomplete sample” problems plaguing our hapless zoologist. The vast majority of plant species are hermaphrodites – a single sample gives you the entire picture. The situation is worth a deeper look.

Each plant has many reproductive org
ans. We call them flowers.
In the vast majority of cases, each flower has both male and female parts – an androecium that produces pollen, and a gynaecium that contains ova. In botanist’s jargon, these are “complete flowers”.
These include roses, lilies and the hibiscus, much beloved of authors of sixth-grade biology texts. In fact, virtually all the bright and colourful flowers that gardeners cherish are complete flowers, and the corresponding plants are called “hermaphrodite”.

Now some plants produce flowers that only make pollen or only have ova – male and female flowers so to speak. But each plant has both male and fem
ale flowers.
Only a paltry 6% or so of plant species have exclusively male or female plants, with flowers of only one type. These tend to be rather small and unattractive, usually pollinated by wind.

Clearly, plants think gender is a bad idea.


So, how about things that move? If you take a walk in your garden, the earthworms and snails you come across are all hermaphrodites. During mating time, two indiv
iduals will line up and simultaneously fertilize each other!
Looking for something less slimy? Take a cruise down to the Great Barrier Reef. Among the colourful corals and sea anemones, you will see schools of bright orange and white fish, which may remind you of the movie Finding Nemo.
These are clownfish, and their gender behaviour is most interesting. Each school consists of many males and one dominant female. But if the female dies or goes missing, one of the males changes sex to become female. How extremely convenient!
In fact, clownfish will sometimes pair up and inhabit a sea anemone. If the pair consists of two males, no problem at all. One of them just “changes over” and all is well.


Such sex change behaviour, where males become females or vice versa in response to the gender ratio in the population is in fact quite common among fish in the coral reefs and several species of amphibians as well (some of you may recall that this was a plot element in Jurassic Park). Imagine the wonders such a system would work in your average engineering college.


So then, what happened to us?

Why are we stuck with the most boring of alternatives, where each individual is doomed from birth to see only “one half of life”, as it were, with much inane speculation about what the other half “really want
s”? Why aren’t we hermaphroditic “complete individuals” like the plants, or conveniently mutable like the clownfish?
Turns out, this is quite a puzzle.


The only major classes of animal where all individuals are exclusively male or female are reptiles, birds and mammals (and dinosaurs too, from fossil evidence, but then birds are just living dinosaurs.) But they are produced rather differently in each case.

If you think male versus female is a matter of different versus similar sex chromosomes (XY vs XX) think again. That’s only for mammals.

Among reptiles, the sex of the individual depends on various external factors like the temperature at which the egg was incubated. For birds, it’s the males that have the same sex chromosomes (ZZ, as opposed to ZW for females).

And even for humans, chromosomes aren’t destiny. It turns out that in addition to XY chromosomes, you need functioning testosterone receptors in the foetus, otherwise it just develops into a female.

Nature has to work quite hard to produce separate-sex individuals, apparently.


But why? What’s wrong with good old hermaphrodites?

The possible diversity in the gene pool is reduced to half in ev
ery generation, thanks to the exclusive single-sex system, so what are the compensating features for evolution?
Is some kind of fitness parameter being optimized by having separate males and females?

Or is it just a “frozen accident” of biological history – the comm
on ancestor of mammals, birds and reptiles had males and females, so that’s how it remained?

The answers lie hidden somewhere in the genetic code. But for now, we half-humans can only wonder and our alien zoologist needs a sample of at least two....

Sunday, 24 October 2010

Aaji Joto Taara Tobo Akashe


All the stars that grace Thy skies

Shine within my soul tonight

Thy Cosmos surges in from every side

Pouring into my depths.

Every blossom in all Thy groves

Blooms within my being.


Unbounded joy from horizons afar

Flows through my soul

A fragrance deep

Mingling, merging, gushing forth again

In ecstatic praise of Thee.

This day I heed not any one

I can hear the words of none

The Cosmic Breath

Sings in my heart

Entrancing as the sweetest flute.





Click the button to play the song.
Translation and song are both mine. The photo is not, but click on it for the full impact.

Sunday, 17 October 2010

The Official Phoren Glamour Ranking List

Finally! After months of painstaking research and much conversation with non-resident Indians (henceforth, NRI’s) and resident ones, I have successfully compiled the definitive ranking of the various foreign (henceforth, phoren) countries where Indian diaspora are settled.


To provide the necessary background, one must realize that beloved though our country is, it is much lacking in glamour and glitz. Resident Indians who have never left the country sadly shake their heads at the materialistically fulfilling, but spiritually devoid lifestyle of their NRI brethren. Interestingly though, they tend to make a rapid beeline for aforesaid materialistic lifestyle if given the opportunity.


But having successfully transitioned to NRI status, it is considered extremely non-kosher to declare that you want to stay on in the country you spent so much effort moving to. Instead you must always say that you intend to “go back after some years”, where the “some” is very nebulously defined.


On the other hand, actually going back to India is considered even more non-kosher, and causes much shock and awe – like saying you want to drop out of college and then really doing it.


Now, having lived in two phoren countries and then come back to India (shock! awe!), I have also observed that all phorens are not equal in the Indian psyche and some have decidedly more glamour than others. Hence, here I compile a carefully researched ranking for my readership, so that they may choose the level of glamour that best suits them.


So, firstly, the three major criteria that glamorize your phoren land:


1) Wealth and shine: No country is truly phoren unless it obviously has mucho moolah with shiny-shiny buildings, fast-fast cars and big-big highways.

As the brother of my Philadelphia resident friend keeps getting asked, “Aap ka behen phoren mein rahti hai, toh aap Nigeria mein kyon rahte hain?” Clearly, Nigeria is not phoren.

Ditto for Russia, Iran, Brazil, and Thailand (whatever other appeal it may have.)


2) White people: The race of our former colonial overlords must be present in copious quantities to legitimize phoren glamour. Don’t ask why. It’s an axiom.


3) English: More a matter of convenience, but helps fine-tune the rankings as we shall see.

So noooow…without further delay…. we give you the rankings.


Rank 1: Take a guess, anyone!

Numero Uno! The Best of the Best!! Undisputed All-Time Champ!!!!

Introduuuucing…. THE U…..S……OF…..A!!!!!! (Drum roll and thunderous applause)

Nothing, and I mean nothing, remotely compares to the glamour of living in the land of the brave, the free and the morbidly obese.

Even if you live in a nondescript small town of Idaho, the aura of the USA surrounding you will dazzle all onlookers, and allow you to sneer with impunity at Bangaloreans, Bombayites and maybe even Londoners.


Rank 2: UK, Canada and Australia

Presented in no particular order, these are the Salieris to USA’s Mozart – all the right attributes, but not quite there. The NRIs living in these countries also exhibit the mentality of those who have almost reached heaven’s door, but not quite.

So, the NRIs in the US keep talking of “going back home” while applying for a Green Card.

The UK ones talk of going back home while applying to jobs in the US.

Similar behaviour is reported for those in Canada and Australia.


Rank 3: Non-UK Western Europe

So, that means Germany, Switzerland, France, etc. Not Hungary, Poland and all those places.

Shiny-shiny – tick. White people – definitely.

But language. Such a problem, the language. Can’t you possibly move to the UK? Or maybe even, nudge, nudge, the US?

Amsterdam gets a partial exemption since the language of cannabis and red light districts is universal.


Rank 4: Singapore and Hong Kong

Aaaah, we can speak English again. But what’s with all these Chinese people everywhere?

I mean, can you even make out what they are thinking? No, no, definitely not done.

Hong Kong is sinking in status as Mandarin is increasingly becoming the spoken language.

Meanwhile, Singapore has almost risen to rank 3, because of proximity to India and relaxed visa procedures. But the Chinese itch refuses to go away, it seems.


Rank 5: Dubai and the UAE

Immense flash and glitter, no doubt. English speaking - good. Also, Muslim. Long pause.

We are in serious bad news territory here, folks. Whispers of brutal punishments, second class citizenship, Indian labourers treated as virtual slaves. Plus Dawood Ibrahim and links with Pakistan (oh no, the Muslim connection again!).

Some phoren glamour remains here, but tinged with darker hues.


Rank 6: Japan

Once a favourite of the older generation, only a lot of wealth and tremendous shine keep it on the glamour list at all. Severe language problems and a worldwide reputation for xenophobia.

Plus, what’s with all the raw fish and cut throat prices, eh?

This is definitely a place where you can tell the visa official, “I intend to stay here a few years and then leave”, without having your fingers crossed behind your back.


So, what do you think? Feel free to suggest fine tunings and alternative rankings, or make indignant comments.

Thursday, 9 September 2010

Much Ado About Nothing

Anybody seeking a perfect example of making a mountain out of a very harmless molehill need look no further than the supremely silly "Park 51 Mosque Controversy" dominating the US media nowadays.
Rumours of a vague plan to erect a mosque on Ground Zero - the site of the World Trade Center buildings - have even reached India. It sounded rather unlikely, and I was disinclined to pay much attention to the matter. After all, the US media is always roiled by some storm in a teacup or another, unlike India where we only discuss issues of the greatest import. :)

All this changed when I ran into an old friend, Ameena, on Facebook, after several years.

What follows is a guest post by my sister, Bisakha Sen, written after I reported my e-conversation with Ameena. Read on, and contemplate the idiocy of the human race.

---------------------------------------------------------------------------------

Musings on Park51

Maybe I should have titled it "Banning Unitarian Universalist churches because you hate Pat Robertson"?
If there is a God that specializes in irony.....this whole mess must surely be laid at His altar !
Till recently, the whole Park51 'Mosque at WTC' was a matter of principle to me, not much more. I have no particular fondness for ANY organized religion, including Islam. However, there are certain religious freedoms in USA. Those religious freedoms cannot be denied to Muslims. And anyway, the site is a few blocks AWAY from WTC, in an area where strip clubs and bars abound -- so its not exactly 'desecrating hallowed ground' to begin with. Plus there are mosques in that vicinity already.What changed things was an email from my brother, a few days ago with a subject line screaming 'UNBELIEVABLE'."Can you believe
it, this is AMEENA'S community mosque that all these (unprintables) are going loony over !"




Ameena. My lovely friend. Looks like a sylph and has a spine of steel. Writer, fashionasta, feminist, passionately progressive, gay-rights advocate, generous-to-a-fault. Who has been known to march out of 'traditional' mosques with her three daughters in tow because the imam had spouted some typical nonsense of 'good women should be meek and subservient' during service! Who can destroy every stereotype you held about Muslims in about 15 minutes of conversation. Who is a dedicated Sufi Muslim herself. Part of a Interfaith community full of free-thinkers of every stripe. My brother visited Friday services at this mosque when he first visited Ameena. He was absolutely enchanted -- "Sis, we had the BEST dancing with chants......sooo much fun". He assured me he had greatly enjoyed conversations with New-age artistic free-thinking types from every background as well, but clearly it was the dancing that truly impressed him ! (side note, this is a community mosque where men and women not only pray together, they dance together !!!).

When we last visited Ameena in New York, we met El-Farouk Khaki at her place. Brilliant, impassioned, extravagantly tattooed and as flamboyant as they come -- El Farouk Khaki is a Canadian activist for Muslim LGBT rights and founder of the 'Salaam', one of the biggest suport groups for gay Muslims in the west. He'd been a guest at the community mosque earlier. We all chatted deep into the night over an endless supply of kabobs -- starry-eyed social liberals imagining days when ALL organized religious groups would be welcoming to all, when imams and priests presiding over exchange of vows of gay/lesbian couples would be a norm, not an exception.
As I now hear the cacophony about this community's mosque, I can't help but wonder -- is THIS why Newt Gingrich, Sarah Palin and the rest are up in arms against this community and their mosque ? Are they worried that a progressive interfaith Muslim group that is pro-gay rights will dent their cherished construct of Muslims uniformly being more 'socially backwards' and 'anti human-rights' than Christians of their ilk ?

Ameena wrote to us saying: "Traditional Muslims don't like us because we're hippy New Age types, and now Fox News says we're jihadists dancing on graves of 9/11 victims !" Frankly, I'm struggling to get my head around the sheer scale of the irony ! That opposition to Al Qaeda and Islamist fundamentalism is now taking the form of opposition to a highly progressive Sufi group! What could be a possible parallel ? Opposition to Pat Robertson's followers resulting in demonizing Unitarian Universal churches might come close!

I fear that the average American protesting this community center is getting played for a fool, and Al Qaeda members are hooting with laughter! An article in this week's Newsweek confirmed today that the Taliban are DEFINITELY hooting with laughter (http://www.newsweek.com/2010/08/30/taliban-using-mosque-controversy-to-recruit.html) -- it doesn't get better than this for them! Americans turn on Sufi Muslims --- whom both Al Qaeda and Taliban hate with a passion -- and in process of doing so, America projects an 'anti-Muslim' image around the world that helps Al Qaeda and Taliban to recruit !!!!!!!

I keep hoping for a happy resolution. Maybe the cacophony will die down a bit, and people will set aside those "9-11 taught me ALL I need to know about Islam" posters, and just be a LITTLE more curious ? Even asking "so who are the Sufis anyway" -- would be a good start! Now that its been revealed that the so-called 'shady Saudi Prince' who MIGHT have been helping with the mosque funding is actually Fox News's second largest shareholder (and among other things, has funded the George HW Bush scholarship at Phillips Academy, MA), maybe some of the anti-mosque protestors will take a small step back and reconsider the possibility that maybe they haven't *quite* been given the full picture ?

If nothing else -- maybe some people could at least start railing against this particular group of Muslims for more APPROPRIATE reasons, like they are "TOO darned" socially liberal, and therefore un-Real-American ?

I can think of no better way to finish this note than with a link from Ameena's own blog, where she talks about her own hope for Park51 leading to awareness and dialogue. Amen to that!
http://ameenameer.blogspot.com/2010/08/why-park51-needs-ayaan-hirsi-ali-and.html

Thursday, 22 July 2010

Of Prisoners and Hats

A bored prison warden calls together 100 very smart prisoners and announces that they will be playing the following Sadistic Game.

Each prisoner will be made to wear a hat which they cannot see. The colour of the hat may be black or white. After this they will be lined up in positions marked 1 through 100.
Each prisoner gets to see the hats of everybody in a position higher than his. (So prisoner 1 gets to see all the hats but his own, prisoner 2 sees all hats but his own and prisoner 1’s, etc)

Now starting with prisoner 1, the warden will ask each man the colour of his hat.
He can only answer “Black” or “White”. The answer will be announced on the public address system so that all can hear. The warden, in turn, will announce whether the answer is right or wrong. This, too, is announced on the PA system.
And yeah, by the way, anyone who gets their colour wrong will be executed immediately.
(That’s where the sadism comes in!)
The prisoners are given a day to come up with any scheme they can think of to save themselves.
Question: How many prisoners can be saved for certain?

So, as a first shot, suppose each man simply makes a guess. There’s a 50-50 chance of being right, so on average about half will survive.
But this is not guaranteed. There’s a very small, but non-zero, probability that everyone will be wrong! Guesswork gives zero certainty.

To guarantee that at least 50 people survive, here’s a scheme.
Every odd numbered person calls out the hat colour of the man in front of him. The even numbered people just repeat what they heard from the man behind them.
But can we do better? Yes.

In fact, there’s a scheme which ensures that all but the first prisoner survives for sure!
This is an extremely neat problem, so you might want to think about it yourself.

…………
…………

Still thinking?

…………
…………

Had enough? Giving up??

Ok here goes.
Prisoner 1 looks at the hats of all in front of him. If among them, there are an odd number of white hats, he says “White” else he says “Black”.
Knowing this answer and comparing with how many white hats he can see, prisoner 2 can deduce the colour of his own hat. (For eg: If prisoner 1 says “White” and prisoner 2 sees only an even number of white hats, he can deduce that his own hat is white).
Now knowing prisoner 2’s answer, prisoner 3 can similarly deduce his own hat colour and so on.
Done!
Only prisoner 1 has a 50-50 chance of being executed, but every noble cause needs a martyr.

Let’s Have More Colour:

Flabbergasted by the amazing escape rate, the warden tries another ploy. Maybe adding another hat colour, say, Red will improve the odds (his, not the prisoners’). Of course, he now has to give them the option of saying Black, White or Red in answer to his question, but he reckons that more prisoners will be wrong this time.
Sorry, Mr. Warden, you are still out of luck! Once again, all but the first prisoner get their colour right – this time using some “mod 3 arithmetic”.

The idea is, replace every integer, positive or negative, with its remainder when divided by 3.
So, for example, 9 is 0, 19 is 1 and -1 is 2.
For brevity, for any integer N, we say “N mod 3” to mean “the remainder left when N is divided by 3”.

Now the thing is, you can add numbers “mod 3” – which means simply add the numbers and take the remainder mod 3.
So, (46 + 21) mod 3 = 67 mod 3 = 1

It doesn’t matter if you first add the numbers and go mod 3, or take each number mod 3 and then add. For example:
(46 + 21) mod 3 = (46 mod 3 + 21) mod 3 = (1 + 21) mod 3 = (1 + 21 mod 3) mod 3 = 1

Similarly, one can subtract and multiply mod 3. Division is trickier and we don’t need it here.

So, back to the prisoners. Once again, the plan is ingenious, but elegant.
Black hats are given a “value” of 0, white hats get value 1, and red hats get the value 2.
Prisoner 1 simply calculates the total value of all the hats he sees mod 3.
He calls out Black, White or Red, if his answer is 0, 1 0r 2 respectively.
Using this, the other prisoners can work out the colour of their hat.

To illustrate, suppose prisoner 1 sees 45 black, 39 white and 15 red hats.
The total mod 3 is: (45*2 + 39*1 + 15* 2) mod 3 = 0
So, he calls out “Black”.
Now suppose prisoner 2 is wearing a red hat.
Then he will see, in front of him, 45 black, 39 white and 14 red hats.
His total mod 3 is: (45*2 + 39*1 + 14* 2) mod 3 = 28 mod 3 = 1
Having heard prisoner 1’s answer on the PA system, he simply subtracts his total from prisoner 1’s total mod 3.
This gives: (0 – 1) mod 3 = -1 mod 3 = 2
2 is, of course, the value for a red hat.
Similarly, prisoner 3 can get his hat colour using the answers of prisoner 1 and 2, plus the hats he can see.
Once again, everyone but the first prisoner escapes with certainty.

Our warden is apoplectic!
To his growing frustration, he finds that changing the number of prisoners makes absolutely no difference. A hundred prisoners, or a billion, everyone escapes for sure, except the first (and even he might get lucky sometimes).
Increasing the number of hat colours is similarly futile.
Given a million colours, the prisoners simply use “mod 1 million arithmetic” (plus some very rapid mental calculation), to get the correct answer every time.
With more colours, the likelihood of the first prisoner being executed increases, but that is small consolation for the jailor who was hoping for some serious body count.

The Seriously Sadistic Game:

Despondent at the high prisoner survival rate, which has made him the butt of prison jokes, our warden e-mails his odious cousin in Tyrannistan, detailing his woes.
The reply is swift: “Turn off the public address system. That’s how we play the game in T-stan.”

Success at last!
Without the PA system, the hapless prisoners have no information other than the colours of the hats in front of them. Every one of them faces the same position as the first prisoner in the earlier game. The only option available is to simply guess.
With N colours, this gives a mere 1/N chance of success. If N is significantly bigger than the total number of prisoners, there is a decent chance that everybody dies.
A dismal end indeed for our highly ingenious prisoners.

The story should end here with, perhaps, a denunciation of capital punishment and wanton wardens, but the mathematician in me has one last question.

What if we play this game with infinitely many prisoners?

You may wonder how that could possibly help – after all, the situation is still the same, isn’t it?
Without any information on what others can see, how could anybody do better than just guess?
All I can say is “Have faith in Infinity and read on....”