Jonah: Yes, the Pinker-Kass bout is fun too. Iโ€™m a bit surprised to see Kass being so nasty, thoughโ€“donโ€™t recall seeing that side of him before.

Iโ€™m mainly with Pinker on the matter under debate, in spite of his blooper about โ€œour inability to visualize four-dimensional spacetime.โ€ Four-dimensional spacetime is radically non-Euclidean, so our inability to visualize it is not the least bit surprising. We canโ€™t even visualize THREE-dimensional non-Euclidean spaces! Pinker probably means โ€œfour-dimensional Euclidean space,โ€ though there have been people who apparently CAN visualize thatโ€“see Endnote 84 in Unknown Quantity.

In any case, I think the word โ€œscientismโ€ is used much too freely in these kinds of wrangles. Science is nothing but careful observation, classification, and measurement, written up and comparedโ€“conclusion to conclusion, hypothesis to hypothesisโ€“with what other observers made of the same phenomenon. If someone has some other method for inquiring into the nature of things, Iโ€™d like to hear about it. There is, to be sure, introspection; and there is knowledge acquired by mystical revelation; but compared to the stuff we find out by observe-measure-classify-compare, truths (if they are truths) acquired by these other, rather private, methods seem to me watery and insubstantial. I guess I am naively scientistic.

I also got a more-than-usually strong whiff of obscurantism from Kassโ€™s piece. Anyone who takes Kassโ€™s position ought to squarely confront the questions: (1) Are there things we OUGHT NOT inquire into by observation, measurement, etc.? (2) Are there things which, leaving aside the โ€œought,โ€ it is utterly pointless to inquire into by observation, etc.? The true obscurantist would answer โ€œYesโ€“Yesโ€ to these questions. Kass strikes me as a โ€œMaybeโ€“Yesโ€ guy. As I said, just a whiff of the old brimstone. Pinker is plainly a โ€œNo!โ€“Letโ€™s Seeโ€ guy, and Iโ€™m with him there. โ€œWir muessen wissen, wir werden wissen.โ€

I part with him in dismissing those โ€œIron Age tribal documents.โ€ Iโ€™m sort of attached to them; and I think that when we get a good naturalistic explanation of human nature, we shall see them in a more charitable light than Pinker currently allows.

So far as the good old Problem of Consciousness is concerned, I have had stuff to say about it here .