A buys#BTCat 60k$, if BTC goes up to 80k$ A takes profit, if it goes down to 50k$ then A cuts loss. So when A is right, A makes a profit of 20k$, when A is wrong A loses 10k$. Or in short, RR=2 (Reward/Risk =2). A trades according to the strategy of taking less and winning more.

B also buys BTC at 60k$ but when it goes up to 65k$ , B closes, when it goes down to 50k$ then B cuts loss. If right, B wins 5k$, if wrong, B loses 10k$. B trades according to the strategy of taking more and winning less.

At first glance, it seems that A is smart and B is foolish, but in fact, mastering these two schools of thought will make a profit. Which school do you follow?