Investing and gambling both involve risk, but one shows you the odds upfront....

https://page-wiki.win/index.php/Why_Compounding_Feels_Slow_at_First_But_Matters_Over_30_Years

Investing and gambling both involve risk, but one shows you the odds upfront. Casinos publish return-to-player (RTP) percentages, letting you see the expected value, which is usually negative