Diversify
The reason you need to diversify your investments is to lower your risks. It doesn't matter how good something sounds on paper, there is always a possibility of losing you whole investment in a category. For example, the crypto currency call Terra (LUNA) went from being worth more than 80$ each to less than 0.00025$ in a matter of days. This was also a coin that claimed to be a "stablecoin" and less volatile due to it's value being tied to the US dollar. That obviously didn't work out so well. My condolences to any Terra (LUNA) owners.