Investing and gambling both involve risk, but one plays with odds you can...

https://highstylife.com/how-do-casinos-calculate-rtp-and-why-is-it-stable-over-time/

Investing and gambling both involve risk, but one plays with odds you can actually calculate. Casinos openly publish their RTP—expected value stays negative. Meanwhile, many trading products slip hidden costs into your “wins,” masking your true odds