Why does it take so long for a trader to learn?

Like I’ve said before, I’ve seen as much so-called wisdom over the years that I’ve eventually learned to hold as inviolate truth, as that which should be thrown out with yesterday’s garbage. Yet why does the eventual accumulation of pertinent knowledge translate so slowly into one’s trading results? If we are capable of weeding out the good stuff from the bad, why doesn’t the good stuff just take over and guide us directly towards success?

Aside from the fact that I might just be a dumbass, one thing I’ve figured out is that the distance between the brain and the finger might not be so close as you’d think — if you’re not careful. I know I’m not the only trader who has a tendency to repeat the usual mistakes, or variations of same, despite having berated myself 10 times in the previous week to make an effort not to do it again. My contention is that old habits die hard. Real hard. And only if you go out of your way to kill them outright. (more…)