Sorry, but that statement isn't correct imo. I might agree with you on daily crosses but the validity increases significantly with weekly, monthly and quarterly. As far as trend lines go, a trend line is good to watch but one "never" knows if "this time" the line holds or not. All indicators and charts have fallacies including candle, pnf, bar, and ewave charts. Imo one has to use a combination of all to see a good picture and since no one is ever ever 100% accurate, if we get 60-70% then we should make money.