Prop trading is not gambling if you have a proven edge, consistent risk management, and calculated risk of ruin. Gambling involves unknown probabilities and negative expected value. Trading with a 55% win rate, 1:1.5 RR, and 1% risk per trade has positive expected value and quantifiable risk. However, trading without a tested strategy, without position sizing rules, and without knowing your risk of ruin IS gambling — regardless of how much analysis you do.