I like the concept of diversification, however, in this current era, everything you would have diversified in, is about to come to an end.

Stocks

The stock market is about to crash, and then crash, and then lose all credibility as the DTCC shenanigans are made known to the people.
And then the stock market is going to crash for good.
So, unless you register your stock with the company, which means taking possession from your broker (they hate this) then you don't own any stock.

Bonds

Bonds have been in super-bubble territory for a while. If... no, when, the derivatives market implodes, say so long to the bond market.

Gold

Gold is much more common than we are lead to believe. Further, it won't be long till we can vibrate gold out of rocks. And the supply of gold will jump. Then the supply of gold will be, go get however much you need.

Property

Property values are in the stratosphere (or in the tank) and they are only held up by the banks being able to lend more and more on a house. This is going to come to an end as cryptos knock out the last pillar holding up banking. Then there will be none who can buy a house at the high rate. No loans, no leverage.

So, if you do not live in it, and expect that place to be your fallback position when things go nuts as the dollar collapses, than it isn't a good investment.

Silver

Silver has a lot of new uses coming online. It will become the worlds most valuable industrial resource. And since all the stockpiles have been used up keeping the COMEX lie going, then the price of silver will skyrocket. (because the new technologies using it are going to be worth that much)