2007-02-17

Purkinje

Only the born geniuses let themselves be worried and fascinated by these outstanding exceptions, and get no peace till they are brought within the fold. Your Galileos, Galvanis, Fresnels, Purkinjes, and Darwins are always getting confounded and troubled by insignificant things.

(William James, What Psychical Research Has Accomplished, 1890)

I didn't really feel up to reading On some Hegelisms in bed on Saturday morning, not knowing a great deal about Hegel, so I skipped to James on contemporary research into psychic phenomena. One of the incidental interests of the book is the lists of great men and examples of historical events which he obviously thought his audience would be familiar with. I'd never heard of Purkinje, and I'm still not sure why James thought he belonged in that list.

James is almost saying the same thing as Thomas Kuhn - "normal science" (Kuhn's term) excludes things it can't categorise, eventually the number of discovered facts it can't explain becomes impossible to ignore, and it takes a genius to change the way people think. James obviously thought a paradigm shift was about to happen with psychic research, but it never did. Psychologists made discoveries about the ability of the human mind to delude itself, and sceptics uncovered fake psychics. The phenomena were explained away rather than piling up to an intolerable level which demanded an explanation. (Interesting similarity to something mentioned on In Our Time the other week - scientists faced with an apparently falsifying fact usually don't do the "correct" Popperian thing of abandoning their now discredited theory, they try to find out what they've missed to explain away the anomaly - they posit another planet, rather than abandoning Newtonian physics because Uranus isn't behaving properly).

There's an interesting division between the hard-headed side of James's temperament (what he calls the "scientific-academic mind") and his desire to believe that psychic phenomena (and the spiritual world in general) could be given a rational explanation and integrated into science. He had enough scepticism to recognise that many psychics were frauds, but thought there was a core of phenomena which needed an explanation. He's scathing about the ability of the "feminine-mystical mind" to provide explanations for anything, but says people with that temperament notice things which scientists ignore because they can't be categorised within the current scientific system. An alternative explanation is that people who tend not to think rationally and sceptically will observe things which aren't really there, or read significance into coincidence and randomness.

2 comments:

Anonymous said...

scientists faced with an apparently falsifying fact usually don't do the "correct" Popperian thing of abandoning their now discredited theory

Presumably, though, the "theory" in question includes details of which planets are (or aren't) affecting matters - so the positing of a new planet essentially means the abandonment of the "there isn't another planet" "theory", so not contradicting the Popperian "correct" way of doing things.

Andrew Norman said...

It's not a fantastic example (it is the one that one of Melvyn Bragg's guests produced, though). A better one is the way that physicists will ignore "wrong" readings from instruments - I remember seeing a notebook on TV a few years ago which had been used by someone famous - numbers which didn't match his theory had been crossed out, only the readings which agreed with the theory were used to prove that the theory was right because the readings agreed with it.