For those that think that crypto-currencies are in a 'bubble', consider that Apple is worth more than $700 billion alone. Then consider that this is only one company compared to cryptos total market cap of around $100B.
Do you honestly think that this completely new and revolutionary industry that has attracted the attention of individuals, global corporations, and governments and is already spawning new ways to communicate, trade, and do business won't be more/do better than/be bigger than Apple? It seems a little unreasonable..at least to me.
Consider again that the entire gold market is around $8 trillion. If only 1% of that goes into the crypto market, that would almost double the size of the entire market from its' current value. Is it reasonable to think that the crypto space won't get any bigger?
What about those that will choose to diversify from stocks or real estate?
I'm not a genie, just making the point that cryptos have a long way to go/grow.