Ian, Chaos is one thing, but I have recently gotten back into catastrophe (!!!!!). (See my "The Rise and Fall of Catastrophe Theory Applications in Economics: Was the Baby Thrown Out With the Bathwather?" available on my website at <http://cob.jmu.edu/rosserjb>) Barkley ^^^^^^^
Hi Barkley ! Are you punctuating equilibriums ? Mathematizing dialectics ? Charles