The Heisenberg principle - If something is closely observed, the odds are it is going to be altered in the process. The more a price pattern is observed by speculators the more prone you have false signals; the more the market is a product of nonspeculative activity, the greater the significance of technical breakout
Bruce KovnerMy experience with novice traders is that they trade three to five times too big. They are taking 5 to 10 percent risks on a trade when they should be taking 1 to 2 percent risks. The emotional burden of trading is substantial; on any given day, I could lose millions of dollars. If you personalize these losses, you canโt trade.
Bruce Kovner