Investing and gambling both involve risk, but they play by different rules....

https://riversinspiringblogs.evergrovio.com/posts/what-is-variable-ratio-reinforcement-and-why-is-it-so-addictive

Investing and gambling both involve risk, but they play by different rules. Casinos openly show their Return to Player (RTP), letting you know the odds upfront with a negative expected value over time