bubbles burst all the time in markets. the internet didn't exactly die after the .com bubble popped, but before it popped people were throwing money at random ventures basically for mentioning the internet or having a good domain name while after 2001 you had to have more than a nice name and some vaguely internet-related idea. the same is true here and any time a crypto bubble bursts: all the superfluous trash dies off like in a flood or a forest fire (both of which can actually be quite beneficial to the overall health of the environment they happen in).
Netherlands