I carry no debt except mortgages, because I consider them good debt and I'm not a Billionaire who doesn't need a credit score.  

At any time during the past 100 years of investing in California the smartest and most-profitable investments was always in multi-unit properties Had I known about the math I know today about investing in multi-units I would be a billionaire and would literally own every apartment building in a 50 mile radius.Here is the reason why.

They might as well invest in bitcoin at that point or day trade. 

Perhaps what @Daisja Vance mentioned is at different level.I know lot of conglomeration outside of USA and the way they do business is super crazy, in one cycle they could become millionaire, the next cycle they lost everything and in the next cycle they become billionaires again.The way they do business is usually by making a 150% LTV loan, by buying a business, it could be oil wells, coal mining, or a forest ; depending on the sector, some sectors is going to a mega bullish year in 10 year period, buy coal mining for  three bucks, only to sell it for three hundred ten years later.

passive", lol.Any real investor knows this is a tough game that brings some hard knocks. there’s an “app” for that 😂 hahahahafirst year is guaranteed rent LOLI think this is also reason why all these new tech company collapse  , who the world need to buy car with carvana , buying home with bitcoin token and all abracadabraa lol 

So, yeah being truly successful in real estate is no common just as it is not in stock markets, bitcoins, or anything else.

In that case they should just buy $1.5bn worth of bitcoin :P 

Bitcoin 70% off it's highs.

Let's not forget there is this statistic that says SF has the most billionaires living in it in the world.

Only billionaire activist investors can do that on Wall Street, and even then they're rolling the dice (cough, Elon, cough).