> You know it's time to sell when shoeshine boys give you stock tips
There's a problem when people invest in things they know absolutely nothing about.
Not one of the wealthiest people who is mimicked by wealthy friends and wannabies! The point of the quote is when the lowest economic class is buying, something monumental already happened for them to even know it was happening and there is nobody else to sell to.
Paris Hilton and the people that paid her are the opposite of that. I think you misinterpreted the quote.
Maybe if people are looking for long term security and insurance against risk they shouldn't buy into anarcho-capitalist fun bucks... or at least not more than they can afford to lose.
[1] https://coinmarketcap.com/ [2] http://zillow.mediaroom.com/2016-12-30-U-S-Housing-Worth-Rec...