Quote from wally_:
Because at some point you have to stop learning (meaning analyzing) and start doing, meaning trading. So at some point these things need to get divorced, otherwise analyzing will interfere with doing.
true, but if you're smart enuf (read intelligent) you'll realize this and proceed accordingly...

Of course when it comes to execution what's identified, intelligence may be a hinderance instead of help. But on balance, I think it helps more than it hurts. If there are separate people doing separate functions e.g. trading and research, then it's a different matter.