Further to my post about zebras, I recently saw a video about stress.
Friday, August 31, 2012
Wednesday, August 22, 2012
Perspective change
What a piece of work is a man, how noble in reason, how infinite in faculties, in form and moving how express and admirable, in action how like an angel, in apprehension how like a god! - Shakespeare's HamletHamlet couldn't have been more wrong. Exaggerated statements and The Dunning-Kruger syndrome are some reasons for my change in perspective over the past decade. As this TED talk shows, humans are not much more than monkeys with some additional bells and whistles. In The Extended Phenotype, Richard Dawkins relates a story to illustrate a change in perspective:Colin Turnbull (1961) took a pygmy friend, Kenge, out of the forest for the first time in his life, and they climbed a mountain together and looked out over the plains. Kenge saw some buffalo ‘grazing lazily several miles away, far down below. He turned to me and said. “What insects are those?”.... At first I hardly understood, then I realised that in the forest vision is so limited that there is no great need to make an automatic allowance for distance when judging size. Out here in the plains, Kenge was looking for the first time over apparently unending miles of unfamiliar grasslands, with not a tree worth the name to give him any basis for comparison.... When I told Kenge that the insects were buffalo, he roared with laughter and told me not to tell such stupid lies...’Some examples of ideas that have helped me see the buffalo are:While being sceptical, it is important not to become cynical. (But this is a fun site.) I saw a quote by Carl Sagan about the need for a judicious mix of skepticism and the need for keeping an open mind:
- 'Brain droppings' by Neil degrass Tyson
- TED talk by Ben Goldacre
- Dan Ariely on human irrationality
- The banned TED talk
- V.S. Ramachandran on quirks of the brain
- A.C. Grayling on his latest book
- An athiest's call to arms
- Sam Harris on free will
"It seems to me what is called for is an exquisite balance between two conflicting needs: the most skeptical scrutiny of all hypotheses that are served up to us and at the same time a great openness to new ideas...If you are only skeptical, then no new ideas make it through to you … On the other hand, if you are open to the point of gullibility and have not an ounce of skeptical sense in you, then you cannot distinguish the useful ideas from the worthless ones." -Carl Sagan, The Burden of Skepticism
Saturday, August 11, 2012
The Dunning-Kruger Syndrome
I have written about Dunning-Kruger syndrome a couple of times earlier. I think I am a fairly well read person but I hesitate to make definitive comments about most issues because I feel that I am woefully uninformed about many things. I was relieved to find that I was not alone in getting this feeling. In The Denial of Death, Andreas Becker writes:
I remember one of my college professors - a man very much admired as a teacher of medieval history - confessing that the more he learned about the period the less he was prepared to say: the epoch was so complex, so diversified that no general statement could safely be made about it.I used to literally fall off my wheelchair when I used to hear people who I thought were not well acquainted with a subject making supremely confident statements about it. I have received many of the most sweeping and confident prognoses of my condition from people who have no connection with the medical profession.
My problem is compounded by the fact that I have to give binary yes/no answers and most questions cannot be answered this way. Georg Christoph Lichtenberg, scientist and philosopher, said that the most dangerous of all falsehoods is a slightly distorted truth. My mode of communication ensures generation of distorted truths.
In the first couple of years after my stroke, when I was more naive, I used to make various 'gotcha' statements thinking that I will show everyone how smart I am.But of course I had zero impact. In Jeeves and the Feudal Spirit, while trying to convince Florence Craye about something, Bertie Wooster muses:
Once more I had that sense of not making progress. Her face, I observed, was cold and hard, like my kipper, which of course during these exchanges I had been neglecting, and I began to understand how these birds in Holy Writ must have felt after their session with the deaf adder. I can't recall all the details, though at my private school I once won a prize for Scripture Knowledge, but I remember that they had the dickens of an uphill job trying to charm it, and after they had sweated themselves to a frazzle no business resulted. It is often this way, I believe, with deaf adders.If you have an argument with these people you get the distinct impression that you are in conversation with the afore-mentioned deaf adder. (I could do with an 'anger room' but how do I use it?) I gradually realised that my best option was to adopt a sphinx-like demeanour with a broad smile (at least I hoped it was a smile). It is said that speech is silvern but silence is golden. They get plenty of that golden stuff from me. This saved me lot of time and effort.
(According to this TED talk, Jeeves' mantra of studying the psychology of the individual often pays dividends. I heard another story about Kemal Ataturk, the strongman of Turkey. He wanted to discourage the wearing of veils but he adopted a different strategy to that of Nicholas Sarkozy - he made it compulsory for all prostitutes to wear veils.)
But this tactic of keeping mum does put me on a sticky wicket. If I keep a glum face, it might be perceived as rude. But since I find it difficult to smile, I will try to induce laughter but I must be careful not to overdo it otherwise people will think that I am wildly enthusiastic about their ideas. (I only need to worry about the first and last sentences of this cartoon.)
t think I did not notice this syndrome before my stroke because the educational institutions that I had been to meant that I was generally in the company of people whose average IQ would be higher than that of the population as a whole. You can't get big-headed when you are surrounded by people with brains the size of planets, people who were likely to discuss Black-Sholes equation over breakfast.I had unconsciously and erroneously imbibed the idea that the wider population will be similar. In other words I was in an ivory tower getting psyched by integral calculus and maximizing objective functions.
With so much brain power around me, it was perhaps not surprising that I had occasional bouts of the Impostor Syndrome.I didn't know till a couple of years ago that there was a name for this type of fear and that it is more widespread than I had imagined.
Ever since I came to know about this phenomenon, I started seeing it everywhere. An internationally well-known case is that of Joe the plumber. I think it is a key problem with denialists of all hues. I don't read much about the science of climate change because the subject is huge and I don't have the time for it. Sometimes I see a denialist article and start reading it to see what the controversy was all about. Very often I realise that the writer doesn't know the difference between weather and climate so I see no point in proceeding further. It is improbable that lots of very smart people who have spent decades studying an issue will make the simple errors that denialists point out. (Te best cartoon about climate change that I saw was in this TED talk.)
We should all be careful of this arrogance of ignorance.We are most confident about areas that are not our specialized fields because we are not aware of the complexities that might arise in them and we might end up describing a spherical cow. Creationists seem to have PhDs in every field except evolutionary biology. (It is stunning that Dawkins is asked to waste his time on debates like this. )
Contrary to what I was told earlier, I am now more wary of taking seriously people who appear too confident about complex issues. Politicians and religious leaders immediately spring to mind.
Thursday, August 2, 2012
Indiscriminate knowledge
In The Periodic Table, Primo Levi talks of a contrast 'which is inherent in the human condition, since man is a centaur, a tangle of flesh and mind, divine inspiration and dust.' It is hoped that education will suppress the Mr. Hyde in us and allow our Dr. Jekyll part to flourish. But occasionally the devil gets out to the shock and bewilderment of everyone. Such is the case with the recent Colorado shooting where the suspect is said to be a brilliant science student.
Many educated people seem to do incomprehensible things. Mohammad Atta, the leader of the gang that flew a plane into the WTC in NewYork, was an engineer. Al Zawahiri, the leader of Al Qaeda is a medical doctor. I read about a person employed in Google and earning a lakh of rupees a month who was arrested on terrorism charges.
The more science learns about the brain the more complicated it becomes. In a course on Human Behavioural Biology at Stanford University conducted by Robert Sapolsky, there is a session on individual differences where various brain malfunctions are discussed resulting in people doing bizarre things bringing into question the concept of free will (unless you are a believer).
Compared to other areas of the world, the US seems to have more of the wackos who suddenly shoot people to alleviate their existential angst. I suppose it has something to do with the environment. After all much behaviour is a result of interaction between genes and the environment. In The Trouble with Testosterone, while discussing the case of the Unabomber, Sapolsky concludes with a nice story:
There is a wonderful Russian story that takes place at the gates of heaven, where the newly arrived are judged. A dead murderer is on trail, fresh from earth where he was shot by the police after his umpteenth murder, the strangling of an elderly woman for her money. A panel of deceased judges sits in session. And where does God fit on the scene? Not as a judge, but as a required character witness. At some point in the proceedings, he shambles in, sits in a magisterial decrepitude born of the weight of infinite knowledge, and in a maundering, avuncular way, does his best to defend and explain the man - "He was always kind to animals. He was very upset when he lost his favorite top when he was a small boy." ("My red top, you know about my red top!?!" The murderer leaps up, suddenly awash in a torrent of memory. "Of course I do. It rolled down the storm drain on Zlonty Street. It's still down there," God answers with complete affectless knowing.) Finally, the judges tire of God, who is in fact tiresome in his knowledge and forgiveness, and coax him off the stand.
When science brings us something new and startling, when there is a breakthrough that opens new vistas, there is often talk about us acquiring godlike knowledge, and the tacit assumption is that this is a good thing, But the God of this parable is useless, has been shunted aside by the indiscriminateness of his knowledge. Knowledge, familiarity, understanding, must not ever lead us to a detached indiscriminateness. The danger of Olympian knowledge is that you then look down on things from an Olympian height, and from that telescoped distance, things seem equivalent - like a lost red top and a strangled woman, or perhaps an awkward adolescence that produces an awkward adult and an awkward adolescence that produces a murderous one.
But there is a difference.
Wednesday, July 25, 2012
Free online documentaries
Recently I came across a site called Top Documentary Films which has documentaries on a variety of topics. This will keep me busy for a long time. Some of the videos that I saw were:
- Jim meets… Sir David Attenborough
- Parrots, the Universe and Everything - a talk by Douglas Adams. Coincidentally, I heard the mating call of the male kakapo a few days ago on Animal Planet, a ritual that Adams describes in hilarious fashion.
- Ethics Without Religion
- Adventures of an Urban Astrophysicist
- The Evolution of Confusion
- Morality: From the Heavens or From Nature?
- The Death of the Oceans
- The Genius of Charles Darwin
The redesigning of this blog is done by Sujit. He was bored by the old look.
Saturday, July 21, 2012
Rajesh Khanna, 1942-2012
Rajesh Khann, the first superstar of Bollywood films died a few days ago. He had a distinctive style that is parodied by Govinda in this song. Following my usual practise, I will link to some of my favourite songs picturised on Kaka.
- zindagi kaisi hai paheli
- kahin door jab din dhal jai
- aate jaate khoobsoorat
- zindagi ek safar hai suhana
- mere sapnon ki rani
- o mere dil ke chain
- yeh shaam mastaani
- chala jaata hoon
- ek ajnabi haseena se
- zindagi ke safar mein
Wednesday, July 18, 2012
Statements that are wide off the mark
During sales training in Wipro Infotech, we were taught that it is better to under-promise and over-deliver than to over-promise and under-deliver. This a good rule to be followed in all circumstances. But it is a custom more honour'd in the breach than the observance.Many people seem compelled to make tall claims that many listeners take as more than empty verbiage.
This is especially common with quacks. I came across a concept called Hype Cycle. Many people seem to go through the the first 3 stages of the cycle but seem unable to make the transition to the 4th stage. Come the next quack and the same cycle is repeated. It is natural for desperate people to feel hopeful after hearing of various miracle tales. Quacks know this. I remember reading that how you speak is more important than what you say and quacks take full advantage of this idea. You can make any statement you like and many people will believe it if you say it confidently enough. As Carl Sagan said in The Demon-Haunted World:
Tellingly, pseudoscience and superstition tend to recognize no constraints in Nature. Instead, "all things are possible." They promise a limitless production budget, however often their adherents have been disappointed and betrayed.Sometime back, Jaya was asked to talk to a guy who it was claimed could cure any paralysed person in 6 months. To observe social niceties, Jaya called up the person. He was horrified to hear that I had been paralysed for 13 years. He said that I should be brought immediately to him and he would cure me in 6 months. Jaya asked him if he had treated any patient who had suffered a brain stem stroke. He replied that he had treated plenty of them. Jaya made some polite noises and hung up. The incident reminded me of a story that Feynman related in this speech:
One time I sat down in a bath where there was a beautiful girl sitting with a guy who didn't seem to know her. Right away I began thinking, "Gee! How am I gonna get started talking to this beautiful nude babe?" I'm trying to figure out what to say, when the guy says to her, I'm, uh, studying massage. Could I practice on you?" "Sure," she says. They get out of the bath and she lies down on a massage table nearby. I think to myself, "What a nifty line! I can never think of anything like that!" He starts to rub her big toe. "I think I feel it, "he says. "I feel a kind of dent--is that the pituitary?" I blurt out, "You're a helluva long way from the pituitary, man!"Many people make statements that don't square with reality. People who care deeply about a particular situation or outcome insist vehemently that they don't give a damn about it. The most argumentative types will say that it is better to keep quiet rather than get into unnecessary arguments. People who boast a lot and seem to often behave arrogantly keep saying that it is important to be humble. (Talking of boasting, this is awesome. And what about this?) Shakespeare was aware of this tendency: 'To thine own self be true' and 'Brevity is the soul of wit' were said by a character ('that Polonius guy') who was a scheming windbag.
They looked at me, horrified--I had blown my cover--and said, "It's reflexology!" I quickly closed my eyes and appeared to be meditating. That's just an example of the kind of things that overwhelm me.
Very privileged people keep cribbing about their troubles. They don't seem to realise that luck has played a significant role in ensuring their success. I keep hearing about talent and hard work but never about luck ('god's grace' is the place-holder term I hear). In her convocation address to Harvard University, J.K.Rowling says that humans alone among all species are capable of imagining themselves in others' shoes but some don't seem capable of it.This leads to bizarre situations. For eg., if the watchman asks for a 200 rupee raise, there will be a 1 hour discussion about it but the same people will spend the same amount casually on ice-creams during an evening walk. (I don't know what to make of this disturbing story. Those people seem to be training to become Snakes in Suits - it is a book that I have not read but I love the title, although I suppose it is being uncharitable to snakes.)
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