I would say "more money has been lost predicting a bottom".
most people buy dips, they have illusion: lowered price is safer.
they buy 650, thought that is lower than 705, and added again at 631, 631< 650. if it printed 600, they will buy again, since 600<631. if it prints 530, they will "wow", cheap, they buy again, if it lowers to 430, they will crowd in again ...
the basic principle in trading is buy low and sell high, it is true.
but you need stand at the right angle, if you bought at 430, now it is 630, perfectly can say: 630 is high (630>430), sell. in bottom picking example, you bought it at 650, now you are at 630, you buy high, not buy low, totally against the buy low/sell high princples.
did you notice unemployment data is good, but the market is dropping? a pretty good divergence example. those guys who rode appl from 50ish years ago till now are leaving. there is no party which can last forever.
of course noone knows that is a top, untill years or months, you will realize that is a top. but it is too late.
Quote from hoop121:
"more money has been lost predicting a bear market than has been lost enduring one."