Indeed. The dotcom bubble recovered eventually and the same will happen with Bitcoin. Due to Bitcoin's size we're simply looking at a much faster recovery in real time. It's not going to take years because Bitcoin time is faster, we're looking at months. I'm expecting a recovery soon, but within 6 months for sure.
The Dotcom bubble recovered? When did that happen? I recall the vast majority of dotcoms either racing towards IPOs with dubious business plans and subsequently crashing, or not getting to the sacred IPO and burning up all their capital.
The dotcom bubble was replaced by another bubble created by ultra cheap debt: the housing bubble. But the dotcom bubble itself burst and never recovered, save for a few online businesses that were successful even before the bubble.
If you are talking about the nasdaq, then yes it recovered, there has been a upward trend since 2002 which continues today. In the case of bitcoin however the timescales are different, people like to compress price developments over decades to the 2 years of bitcoin which cannot really be done, except for some fundamental truths in market movements.