My uncle used to brag about how good of a blackjack player by talking about how he would win enough to pay off the cruise he was gambling on. We never had the heart to tell him that all that does is prove that he got lucky;
professional blackjack players only average a return of 3-5% profit.
That's how I feel about the crypto (and to a lesser extent stock) bros. The future is unknowable, and even people who trade these thing professionally make fairly marginal gains (that they make up for in quantity); saying you made millions from bitcoin just says "this guy got really lucky!".
