In the short term, it depends on luck, and in the long term, it depends on technology. The most attractive thing about Poker is that there is too much luck in the short term, and it is easy to give people the illusion that they can win. That's why so many players are willing to play this game. If you lose every day, you won't be interested in playing. But in the long run, luck will revert to the mean. In the end, it must be technology, and it depends on whether your trading model has made positive EV decisions.