On Nov 19, 2008, at 12:44 PM, Stephen A. Lawrence wrote:
I picked the top and bottom (humans and rocks) to be unambiguous, but everything in the middle is at least somewhat unclear.
It is even unclear for humans. Is a sleep walking man conscious? Is someone conscious in a coma, and if so what kinds of comas?
Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
