Epistemic limits of scientific enquiry

November 7, 2009 2 comments

Had attended a talk the other day by Dr. Jayant Haritsa from the CSA department, on using textual representations of Carnatic music (Music written as Sa Ri Ga Ma etc.,) to determine what is the ‘Aarohana’ and ‘Avarohana’ (the equivalent of scale in Western music) of a given Raaga or identifying the raaga itself, given another piece of music, outside the ones used to train the identification system. Among other aims than the ones given above, was to provide a ’scientific basis’ for the raagas, based on the statistics of usage of notes in various compositions, and maybe, provide a better Arohana/Avarohana for the raaga itself than the one received from tradition.

The talk was itself quite interesting and the system seems to do pretty well. In the Q&A session, a lot of concern was generated as to whether the ‘better’ Arohana/Avarohana proposed by the system would capture the ‘mood’ of the raaga, which seems to be an essential part of each raaga. Haritsa was of the opinion that as scientific researchers, we must not take things for granted and must try to question tradition using tools of science.

The essential issue, which one can generalize to things further than just music and its analysis, is the question of what is knowledge and/or Truth. More specifically in this context, one can ask the question as to what type of knowledge can we obtain using the scientific method, and whether this is the only kind which is ‘reliable’, the rest being ’subjective’  is useless in a more general context, i.e, whether Truth in all its glory is best sought out using the scientific method.

Upfront, one must understand the fundamental premise of the scientific method, even leaving out its reductionist inclinations — Nature is not random: it follows some logic, some pattern which by large number of observations and/or experiments is discovered and this knowledge (from observation/experimentation) eventually can be called Truth. This is not hard to justify: we can see patterns everywhere in Nature and can build quite accurate models of the same. The reliability of scientific knowledge depends hugely on the concept of measurement – representing natural phenomena as cardinal numbers – numbers we can use to say something about the size of the measured phenomenon. No observation or experiment can be called a success/failure if it does not produce some kind of number. For example, Haritsa’s system produces a number per candidate scale for a raaga — higher the number, more likely it is the correct scale.

Immediately, one can see phenomena that the scientific method cannot be used to investigate : Emotions, ethics, likes, dislikes, etc., etc., Not only are these immeasurable (neuroscientists may disagree!) quantities, but they are also incommensurable: a statement like 2.5\times Happiness \geq 0.5\times Sadness makes absolutely no sense. Also, science can give no answers to statements like ‘The world is Maaya’, or ‘What we perceive is not what Is’. These statements belong to the same class of knowledge that the fundamental ‘axiom’ of science belongs to — you cannot prove or disprove them within the logical system that is built upon that axiom.

Now, music is a strange beast. It is highly patterned (scientists like to talk about its ‘mathematical’ structure), but at the same time, its main (probably only) value is in the emotion that it evokes: it is not coincidence that music is an essential part of religious worship, especially of the Bhakti variety. Therefore, no musical education is complete without a good understanding of both the patterns and the emotions (Bhaava) associated with music. Now, scientists are uncomfortable (or dismissive) about things they cannot measure, and musicians are uncomfortable (or dismissive!) of statistical analyses of their art. Therefore, it is not surprising to for each to value one of the two more. Haritsa’s and the audience’s apprehensions merely betrays their respective inclinations.

With the advent of huge computing power, a scientist’s optimism in understanding the universe has understandably increased. It is a common notion that failure of mathematical models is simply due to the ‘exclusion of some variable’ from the model. With more information/data, one can do arbitrarily well. This attitude conveniently ignores the fact that some quantities are not measurable and even if some quantitative representation is possible, they might be incommensurable. This can be seen best in sciences dealing with human tastes and values, like economics, sociology or anthropology. Subjects like econometrics, social psychology seem to be treading a fine line that distinguishes scientific knowledge from gobbledygook. For example, if one surveys 100 students asking them to rate the facilities at the hostel on a scale of 1 to 10, and we conclude that the average score is 8 and so most are satisfied (assume a score greater than 7 implies satisified), we are making two assumptions : we can add the satisfaction of 100 people and divide that number by 100, and that one student’s rating of 7 is the same as another student’s rating of 7. Though there have been arguments justifying such an approach, it is upto the individual to decide how seriously to take such surveys.

The dominant paradigm of our times is that of scientific optimism, and most appeals to emotion or morals are considered ‘woolly’ and ‘unscientific’. But one must realise that unless there is a healthy engagement with both pattern finding and moralising, the Truth can never emerge.

Education from the bottom up

September 21, 2009 Leave a comment

Just finished Ela Bhatt’s book ‘We are poor but so many’, which is quite a strong reminder as to how radically different the outlook, needs, tastes of the invisible 70% of our country is when compared to our own.

Benchmark for the entire planet!!

Benchmark for the entire planet!!

Bhatt recounts her experiences with women of various trades in and around Ahmedabad and around Gujarat, notably ragpickers, vegetable sellers, rural embroiderers who see that their strength against exploitation by the middlemen serving people like us is in their collective bargaining power, in their numbers. SEWA is an trade union of, for and by women in the lowest strata of society.

Bhatt tries to make the reader understand the various dangers and difficulties a poor woman has to face and how things change when their confidence (almost synonymous with financial independence) rises. As a source of both information and inspiration, this book is very useful.

In the same vein, one can envision of an education that suits the needs of those that recieve it, rather than a one-size-fits-all package shoved down children’s throats nowadays.

There have been many people who have thought hard about children’s education, but probably none could put it in stronger terms than Ivan Illich in ‘Deschooling Society‘:

Many students, especially those who are poor, intuitively know what the schools do for them. They school them to confuse process and substance. Once these become blurred, a new logic is assumed: the more treatment there is, the better are the results; or, escalation leads to success. The pupil is thereby “schooled” to confuse teaching with learning, grade advancement with education, a diploma with competence, and fluency with the ability to say something new.

Another interesting person is Krishna Kumar, whom I have already written about. Both, albeit in very different tones, make the same basic point – Education no longer helps children to relate to and understand their surroundings, but rather encourages them to insulate themselves from it, preferably by getting onto the middle class bandwagon. This strategy worked spectacularly for the British, who managed to create a small group in India who admired European civilization as much as they despised their own. This group helped the British administer India, and is nowadays known as the Indian Administrative Service. The middle class in present day India (you and I) have also taken excellent advantage of such an education to insulate themselves from vagaries of nature and the economy.

However well this may work for a small part of India, it is almost irrelevant to someone who does not earn more than, say, 3-4000 rupees a month. They cannot insulate themselves from nature or Chidambaram, and therefore cannot afford not to understand the environment in which they live – their survival depends on their understanding of their environment. This can easily be substantiated – Those who die of swine flu have never travelled outside their city, those who die in communal riots are not the ones who instigate it, those who have access to money will not die during a drought, if you cannot differentiate between edible and poisonous plants  or between potable and unpotable water there is no way you can survive. For those with access to money, however, all these details are taken care of by the Consumer Affairs or Health or Home Ministry.

The reason why this point is being made is that there is tremendous interest being generated in the field of education, with innumerable well-meaning volunteers from comfortable backgrounds spending time with kids in slums and villages. Times of India has a huge program, someone wants to start something called Reach and Teach in IISc for the kids of employees here, and almost every corporate has some fancy corporate social responsibilty program attending to such a need. However, the road to hell is paved with good intentions – hard facts and insight into the magnitude of the task of teaching children from a milieu fundamentally different from your own is normally missing.

Since school is of no use other than to provide midday meals and the company of other children, all the required life-skills are learnt through informal channels or worse, from vested interests. Being street-smart is necessary for survival, but it also perpetuates certain modes of thinking and behavior which keep the poor away from the mainstream. The case of poor Muslims in India makes this very clear. Ela Bhatt and SEWA Bank also sought to bring certain skills into women’s lives like financial planning and spending on consumption versus production, which helped them make better decisions for themselves. Ultimately, it is their life to lead – education must help in making people autonomous and confident about their own decisions. This kind of education, especially to children just beginning to observe and understand their environment (6th – 12th grades, maybe), is crucial in my opinion. For children younger than this, it is probably more important to ensure they play a lot and generally have a good time.

So, what is the responsibility that rests on the teacher ? It certainly is non-trivial – it would atleast require a basic understanding of the background of the children, learning from their observations and interpretation, a strong sense of history and ethics and huge number of interesting stories. Nobody can learn all of this at one shot – the teacher must approach the children she is supposed to teach with humility and a desire to learn rather than teach. Reading books like the one mentioned above will not hurt either. Then the background required will slowly evolve within oneself and will benefit all involved (probably the teacher benefits more!). It also brings about a new respect for the modes of behavior and thinking of a people completely different from oneself. Indians like to travel the world to meet new people and learn about new cultures. All you need to do is step into your neighborhood slum.

IISc – first impressions

September 12, 2009 12 comments

Nice trees. Very nice trees. That is the first thing you notice when you come to IISc. It is an island of green in a sea of gray concrete, beautiful and soothing at the same time.

The second thing you notice is relaxed the place is. Nothing of the ‘publish or perish’ problems that seem to plague friends studying in US universities. Consequently, the number of papers that IISc outputs in a year is not very high and I frankly think nobody should give a damn about it.

Another thing one notices is the number of people from Karnataka here, which is close to despairingly low. But our lunch table has enough interesting people, so not really too much of an issue from my perspective. The profs are really good, atleast in our department, students are quite capable with some exceptions.

The high point of the last month has been two talks, one by Ramaswamy Iyer and another by Uzramma, both questioning what is defined as ‘development’ today – the former in the context of big dams and the latter on the cotton cloth industry. IISc and its neighbors are able to get some really good people for talks, which is an advantage of being a famous institution and all that. However, one thing that immediately comes into focus is that the world of the people in IISc is completely cut-off from the real world, with people living in their own private wonderlands. Thus, Uzramma was given suggestions to do HRD, improve efficiency using solar power and such things when her talk focused mainly on generating a livelihood, which was being denied to many in India today. Iyer’s call for academic institutions to focus on water science will probably be lost on professors and students intent on keeping up with the latest topics in vogue in the West.

There is no dearth of a feeling that IISc is doing the country a great favor by its existence, though such a notion can be very easily questioned. The main contribution of  IISc seems to be the material enrichment of its alumni, all getting huge salaries by virtue of their ‘brand name’. And absorbing lot of CO2 and dust, thank you very much. It does not seem too interested in the material basis of its own existence, with lights and computers running 24/7 and not a single building that I have noticed implementing rain water harvesting, and all this with a Centre for Sustainable Technologies (CST) on campus!!

There are places which are supposed to do interesting work, like the Divecha Centre for Climate Change and CiSTUP, but the imperative for the scientists here to deliver information and insight that empowers society as a whole seems to be missing. Science appropriate to our local context seems to have taken a back seat to cutting edge science which has no relevance to the hawker on the street. Is it possible to create science which is both cutting edge and socially relevant ? yes. One does not start out trying to be socially relevant, since that restricts the mindset of the scientist, but a complete lack of knowledge of problems facing our society which could lead to interesting science does not seem to faze the people here.

Not that the people lack awareness – there are amateur theoreticians and activists in every field here, be it politics, culture or linguistics. In that sense, IISc is a typical intellectual institution – people supporting Hindutva and Marxism and every other ism exist side by side, staying away from each other and looking down at everyone else who obviously have an ideology inferior to the one they hold dear. There are grand theoretical discussions and debates, but obviously none of that matters to the kid who had to leave school to work in the xerox centre, copying books he cannot even hope to understand. The fact that students and faculty of a centrally funded institution have a strong social obligation seems lost here. There may be people justifying that their social obligation is to produce original reasearch, i.e, publish papers, but Amulya Reddy might beg to disagree.

Like someone said, the poor have only the truth to fight with. Scientists, as seekers of the same truth must use their skills to help the cause of those who do not have anyone to look upto for help. Whether each student of IISc is doing her bit to work towards this end, is upto her and her conscience.

Design as if people mattered: A report

August 15, 2009 Leave a comment

Settling down into the madness that is IISc, but had to complete a (somewhat tiny) report for my final semester here in JSS college, Mysore. It is an account of theoretical and practical issues and experiences that one should consider while trying to design something which has to be used by others. It’s main focus is on rural areas and LED lighting, but I believe that the principles are quite general in nature. The interplay of science with everything else is quite obvious in this report, if somewhat implicit since that was not the main focus. You can find the report here and the slides here, or check out the documentation section.

Environmentally friendly cows!

June 26, 2009 2 comments

Once you start hearing papers say such things, you know something is seriously wrong. The motivation behind such a statement is that apparently cows belch too much, and their burps contain methane and this is a very potent greenhouse gas, and therefore we must breed new cows which burp less, so that they don’t contribute to climate change!

I have been trying to wrap my head around the concept of an environmentally friendly cow for almost a day now, just not happening. Maybe scientists nowadays are too advanced for us mere mortals to understand. But wait, just due to their sheer numbers, termites probably emit more methane than cows overall. Therefore, we must also try and breed new termites, and ban people from keeping termite farms. While we are at it, we should also breed new set of humans who do not eat junk food (especially peanuts!), since that is a huge cause for methane emissions as well. Looking at what junk gets done in the name of science these days, funding should not be too much of a problem.

Why is it that cows, that have peacefully belched their way through a couple of million years without causing too much climate change suddenly the enemy ? Obviously, the problem is not with the cows themselves, but the rate at which beef is being consumed makes their number quite formidable. So what is the answer to this ? according to the previous link, control the number of people, so that they can eat lesser number of cows!! Beef is not the staple food in most countries, and the population increase happens in classes which cannot normally afford too much beef, so wonder who is eating such a large amount of it.

This insane and ludicrous issue brings to the fore the contradictions of a civilization that cannot accept that its way of life is completely off track. It wants to keep thinking that the way it has progressed is viable, and only few minor issues arise that can be solved by ’scientific innovation’. This blame-the-cow attitude has been with us for a long time: blame the poor, blame the corporation, blame the Muslim – as long as we are not blamed. Wonder when people will grow up!