Anyway, this is the real slot machine of the future: will altcoins survive? How many of them?
I think maybe 3 or 4 will survive, for a period and, unless Bitcoin is destroyed for some reason we can't imagine yet, other crypto will disappear in the end.
They'll be like cockroaches. Nothing will kill them off and there'll always be a tiny hard core bleating at each other on here or elsewhere about how they're about to turn the corner.
Alts that fill specific purposes may thrive in a quiet way or just be eaten by a layer on top of BTC.
Alts offer the same pointlessness as BTC appears to the wider public now. Why would I use my BTC to buy LTC to buy something? Less people will accept it and there's another layer of volatility on top.