> Scientific impression for 'anything is possible' is that you can write a > possibility function for the specified event. I had a college physics book that attempted to define "impossible", and use= d the "monkeys typing Shakespere" trope as an example. IIRC, they used som= ething like "the calculated probability of X happening within the expected = lifetime of the universe" being very small=85 BillW --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .