Not sure why you're being downvoted. Word "gamble" too inciting? Maybe if you'd used "much more risky investments" instead, but I'm not here to quibble about your language but to agree with you and extend what you're saying. I actually think the $10 million number is also relative to age because someone who's 30 and "merely" a millionaire can and will invest up the risk ladder as if they're a 50-year-old risking their above-$10 million capital. And the population of people who are millionaires vs decamillionaires is of course a healthy multiple so there's a lot more risk appetite than the relatively small number of decamillionaires would suggest.

As an aside I feel like there's this terrible trend where folks focus so much effort and energy worrying about whether billionaires should exist, whether they should be taxed more aggressively, etc. that we've lost the plot on just how much loot even a net worth of $10+ million is. And at the risk of me writing a too-long comment (bad habit), think of the risk appetite someone has when their decamillionaire parents pass away, and they're given, sometimes overnight, millions of extra dollars. Sure, maybe they'll buy a house, but oftentimes those funds go straight into the market. With boomers starting to leave this mortal coil and their trillions of dollars being passed down you can start to understand why the market seems disconnected from historical fundamentals.