I agree about the general concept of diversification, but I wouldn't put any money into any of the above--mainly because I have no idea what any of those things are.

The stock market is pretty far along in the bull market, and a lot of stocks are super inflated already.  Normally I'd suggest putting money there.  Precious metals are definitely not in a bubble, so that might be a wise choice.  And when interest rates rise, normal interest-bearing things might start making sense, too.

About the bubble.  I'm not so sure bitcoin itself is in a bubble, but these shitcoins most definitely are.  I wouldn't touch any of them with your filth-encrusted ten-foot pole.  There's no way any of them are going to retain their value beyond a year.  But what you're asking basically is how long can investors remain irrational, right?  There's no way of knowing, but people have been known to be stupid long-term.