That 1% might possibly be the whales who holds big volume enough for the to manipulate the price. People can really profit from trading since the track is just based on human behaviour. And behaviour can easily be studied since there is pattern that can be used to determine the next price.

Becoming good on trading takes a lot of experience, a lot of loss because experience is costly. Doing trading for longer period of time means you have finally get the whole idea of trading, but because along the way there is a big lost happening only those who can sustain remain.