What Can We Learn From Cryptocurrency?

The cycles of the internet is seemingly going to happen over and over and again. People get really excited about our new technology, then there's a bunch of money that gets poured into it. So what can we learn and take away from that for future technologies? Ye, nft, i must just say cryptol currency in general, because they're all part of the same rise and fall. I admit, nfts are differet than crypto the way e commerce is different than the web, but they all kind of rise and fall together.