Warren Buffett’s stellar career has been the subject of rigorous analysis a number of times, usually confirming that chalking it up to luck is ridiculous, and a recent study from Salil Mehta shows that very few people can ever hope to beat the market long-term, let alone recreate what Buffett has accomplished. But with a good couple of years under their belt, investors may need to brace themselves for a new crop of overconfident financial analysts. Millions of new investors off to a good start “If you and your friends had all tried your hand at stock selection and market-timing…