You aren't the same as you were yesterday . . .

. . . but you think you are.

Cells are dying all the time in your body -- and most of them are being replaced at a tremendous clip. (Even brain cells turn out to regenerate themselves far into adulthood.) And yet somehow, despite that enormous cellular turnover, you still feel like yourself week to week and year to year. How is this possible? (Steven Johnson, Emergence: The Connected Lives of Ants, Brains, Cities, and Software. New York: Scribner, 2001, p. 83)

I don't really know the answer to that one. Sorry. But part, maybe all, of the answer, may be that our self, whatever that is, is not wholly material. It depends on something besides our neurons.

Thanks for reading.