Well I'm young, and I'm a computer scientist, and I worked in cryptography. You're not the only one who doesn't "get it". A lot of this stuff doesn't make sense, even to experts like me.
Our people (not just me, but also PhDs at my last firm) all looked at this stuff, and we basically think it's a kind of convoluted shell game / scam. Lots of techno babble that superficially sounds impressive, but doesn't actually make sense. That's why I don't invest in it.
We even had crypto firms approach our company and ask us to join their ventures in partnership. We analyzed their claims, and rejected their invitation.
When I say this stuff, other young people usually respond and say that I just don't get it. Well maybe, but I am an expert directly in this field (including the cryptography and networks).
It's possible that for some reason, I just don't get it. But if that's the case ... do you really want to invest in something that even experts (like me) can't decipher? That's not a good sign.