I completely agree that you need to diversify your holdings.

I can imagine that a lot of people were left without anything, or without a large portion of their money, after DOT COM bubble like your mentor did.

But, what if your holdings are small and investing in stocks won't get you some serious profits because they're not as volatile as crypto.

Then, I'd suggest you to invest only in crypto, but only the amount which you can lose.

Just like you said, cryptocurrencies are the best bet right now.

I'm a young guy, only 20 years old, and my holding are small since I'm still on college.

So, I invested only in crypto.

At older age, if crypto blossoms, I'll most surely diversify my holdins.