That's been my theory. It's a longer term play that's about accumulation.
If my theory is right, essentially you could become a multi-millionaire with a middle class tier of investment.
Some notable areas to pay attention to:
XHV - Exchange of synthetic assets on chain - fork of XMR. This lets you have an anonymous stablecoins. Has had recent hacks but is still kicking. The devs seem corrupt though.
DERO - Wants to the be private version of ETH. Needs a ton more work and developers though. Could be promising in the future but unknown.
RUNE - Decentralized liquidity provider and exchange. Has had many hacks too (their services not the crypto). Very promising once they learn to code better.
Samurai Wallet - Supporting Atomic Swaps between BTC and XMR. Not an investment, just showing you that my Atomic Swaps narrative is coming online. Smart money will start moving from public to private blockchains.