Investing and gambling both involve risk, but the key difference lies in...

https://thinkaora.com/luck-is-not-a-plan-where-investing-and-games-of-chance-actually-differ/

Investing and gambling both involve risk, but the key difference lies in expected value. Casinos openly share their RTP, letting you know the odds before you play. Many trading products, though, hide their true costs, chipping away at your gains over time