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On Wed, 19 Jan 2000, Michael J Williams wrote:
> [An odd little wrinkle occurs to me here: is mental labour
> 'physiological'? As far as I know there is no way of
> measuring the work done by thinking (even in a laboratory),
> and casual empiricism tells me that however hard or long I
> think, I never lose any weight, whereas a few hours of hard
> physical work clearly involves the expenditure of energy!]
Sure it's physiological. It does not take place in a Cartesian
immaterial medium. It shows up on PET scans.
Allin Cottrell.
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