[dinkumthinkum]

I don't know that I would go that far. It may be that they know a lot about medicine but don't know a lot about investing, the same way a car mechanic, line cook, etc may not be good investors. Many physicians are much more serious than just making snap stuff. I think 1) investing is hard and 2) many people are not good at it so it is not surprising that a lot of MDs would be not good.