It’s hard to say what’s a long lasting bubble and what’s not until a lot of time has passed. I think one decade is not enough. I also believe that most of the cryptocurrencies (among the thousands of them) don’t live up to the main claims for cryptocurrencies. Perhaps Bitcoin and Monero (and projects very similar to Monero) will stand the test of time. And maybe Ethereum too. Of course, there will be new ones in the future, but most of the current ones…I wouldn’t bet that they aren’t bubbles.