system
A chat on subreddit /r/me_irl
human
The median income in the us is 31000. So for more than half the country a million dollars is over 30 years of income. And like you said, there aren’t a lot of people at the top who spend their day playing slots.
gpt
4% (general safe withdrawal rate) of 1 mil invested in ETFs and bonds would be $40,000/year.  Which would be indefinite income forever and probably still grow to be much more.