I don't understand what is with this site. It said to send a comment to a recent message. On the list I find only very old message.

About Asimov: He propose a concept as psychohistory. I find after reading most part of Asimov work that perhaps "stochastic psychosociology" could be more close to Asimov's concept.

I'm a new user in this kind of transsaction of information. Could tell me someoane what difference is between chat and "discussion"?