You can look at it the other way, the dot-com bubble happened under huge speculation that we'd "live on the internet" and the huge potential of e-commerce/marke

You can look at it the other way, the dot-com bubble happened under huge speculation that we'd "live on the internet" and the huge potential of e-commerce/marketing but the tools available were still not finely-tuned and the internet speeds were also lagging behind. But now that we have widespread adoption of smartphones and high-speed internet(still lagging behind in some countries), plus a plethora of tools to build apps and track, analyze and influence user behavior, tech companies are some of the wealthiest and most influential enterprises on the planet, two of them even survived the 2000 bubble(GOOG and AMZN), IMO, far beyond the imagined potential of dot-com predictions. So I partly agree with you, I think there are some extreme expectations on BTC and a major crash seems possible, but who knows, maybe technology will enable BTC or some other cryptocurrencies to thrive the same way the internet recovered from the dotcom bubble burst.