How come ... ... weather prediction is so accurate ? I mean if You look at the similarities between stock market and weather - both are chaotic systems; the last can be predicted - with a big certainty at least for a day in advance - and the former not ? Or let's turn the idea around. If You are capable to forecast the weather for tomorrow, shouldn't You be a good trader then, too ? Or turn it around again. If You train Yourself to forecast the weather, wouldn't You at the same time become a good trader, too?