As we all know, 99% of altcoins are scam. I can only think of less than 3 coins that I would hold long term, only allocating 10% of my crypto portfolio into alts.
So given that most of that value is put into nonsense, sooner or later money put into nonsense bursts, and the money will of course go back to Bitcoin, since Bitcoin is crypto, and crypto will never disappear.
The question is, how high will the alt bubble get, and when do you estimate that it will happen?
For reference:
If Bitcoin is the Amazon of the "dotcom bubble" then we would be looking at $1million+ a coin in 10 to 20 years.
While most altcoins would be dead, except a few exceptions.