Ask HN: What similarities might the crypto market have with the dot com bubble?

I was too young to remember the dot com bubble when it happened.

All I know is that a friend's dad almost lost their house when Cisco's price collapsed.

But I have been following the crypto markets very closely over the past few years.

We saw a very strange move about a week ago where almost every single coin across the board increased substantially in it's USD valuation.

And I have no idea what to make of it. Surely every single coin across the board did not increase in value overnight.

Are there any similarities at all between the dot com bubble and the crypto bubble that you can see?