I've posted this more than once, but it's always relevant: Why Bitcoin's Growth is Normal
Bitcoin is volatile because of the low market cap. It behaves like a pre-IPO stock, and those who are used to investing in pre-IPO stocks are also used Bitcoin-like volatility. But that's also where the big profits are.. once a stock hits IPO, it's already too late.. no more 100-1000x gains. That's why Bitcoin is so special.. it allows non accredited investors to get the pre-IPO experience. Very democratic in that way.