Quote from drmarkan:
I don't completely agree with you here. I'm sure a lot of people here have a certain stock that just beats them 4 out of 5 times whenever they try to trade it. That doesn't mean they are consistently wrong about all stocks, but certain stocks they are. Could be true about indices as well.
I guess it would have to do with the individuals definition of consistent. If he came out at the beginning of each of the last 4 years bearish on the S&P, I would say he is consistently wrong. Even if he is right this year.
Also, when he flips sentiment from bearish to bullish or vice versa, rather than staying linear, he may never eventually be right.
Everything is possible. Maybe he is the exception and he will be wrong all his life. I would just challenge that it has more to do with bad luck than anything else. I am a reversion to the mean kind of trader, so it probably impacts my way of thinking. We will see.