Michael Saylor believes it is the future, has invested and made billions out of it. The late Charlie Munger said it was a worthless bubble that would burst and likened it to trading turds. Long term one will be right and one will be wrong. Both of these guys probably know or knew more about investing than anyone on this forum ever will.
I've put a very small amount in and going long. An amount so small you I wouldn't care if I never saw the money again.
https://www.moneyhub.co.nz/how-to-buy-bitcoin-in-new-zealand.html