From: Martin Nowak To: Jeffrey Epstein <jeevacation@grnail.corn> Subject: Date: Fri, 01 Jan 2010 22:40:50 +0000 a replicator is someone who uses food to make a copy of itself if X is food and Y is the replicator then the chemical reaction is X + Y => 2 Y this brings us immediately to infection dynamics. if the basic reproductive rate of the replicator is above one, then "food alone" is an unstable equilibrium. but i do not know how to relate this to free energy. i do not understand how to think of the "thermodynamics of infection" EFTA00765748