I think OP was right they have similarity the poker and the trading and probably also all feature gambling too, but I guess the more worst risk is gambling though it is not too much need TA when you are playing, unlike trading you need to have dip research.
They are both same risky if you apply money management well. It might be even harder to estimate probability of winning in poker correctly rather than learning TA indicators which can learned if few days. To play poker as it should be to win you have to do dip research.