I find it interesting that this answer and @enormouspony's answer both take the approach of searching for the lowest downside rather than searching for the highest upside.

Or some one of a kind real estate. But properties can drown in the sea or be in a atomic bomb radius etc. That's why the Etf is probably the better option.

But Bitcoin would be my first choice - which wasn't available by your questions premise.

bitcoin

If you could only hold one asset for the next decade...

MSCI World Etf.

Or some one of a kind real estate. But properties can drown in the sea or be in a atomic bomb radius etc. That's why the Etf is probably the better option.

But Bitcoin would be my first choice - which wasn't available by your questions premise.