Glen writes: "I think probability is a red herring, as is high pop variation of any kind."
I suppose so. But there are situations, especially in biology, where some aspect of an experiment can be reproduced but only to put a confidence interval on a correlation. Insisting on experiments that are strictly boolean valued is too harsh if there are other variables that are hard to measure, but don't completely destroy the correlation between things that can be measured. Marcus ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com