________________________________ From: Andy <mimi.erva@xxxxxxxxx> >I could be misunderstanding, but it seems to me that probability would be >different from coincidence.> When I had written:- >When we speak of a coincidence, even a 'pure coincidence' or a 'staggering coincidence', we are all either talking loosely or we are straying into an area that requires understanding of probabilities and indeed the various 'philosophies' of probability.> This does not say that coincidence cannot be differentiated from probability but rather that, if we are to rationally understand "coincidence", we need to understand probabilities. It is a coincidence that the gender of the next poster after this is the same as mine (and it's a coincidence if it is not); but this coincidence is hardly significant or striking given the probabilities involved. When we point out a coincidence it is usually because we are assuming that the probabilities involved are noteworthy: we might note that someone is wearing the exact same rare t-shirt as us but not the coincidence that they are also wearing a t-shirt or clothes at all. A person who utters "What a coincidence!" when finding others in western society also wearing footwear, or having two eyes, belongs in a discarded Monty Python sketch. Put another way, try developing a theory or account of 'coincidences' [including what distinguishes a remarkable from an unremarkable coincidence] that does not involve understanding probabilities. Donal Coincidentally avoiding his responsibilities elsewhere Probably England