Indeed, crypto is here to stay, no matter it remains in bear cycle for long or short time & whatever turmoils like LUNA & FTX it goes through but eventually it will make new ATH. Ups and downs are normal in crypto currencies & this Volatility provides opportunity to take new buying positions and make huge gains. All sectors of crypto space are making huge technological  development, Hence, I don't think we are going to see anything like crypto is going away and disappearing..