Bitcoin is a "fiat currency" which means it has no real value other than the perception that it does have value. It is strings of 1's and 0's in the cloud and was made up by some fairly imaginative people. By advocates saying it has value, some folks believe it.
I am a metals guy myself and in retirement I can't afford to make any mistakes. But aside from the usual mutual funds and EFT's my portfolio is heavy with gold and silver. I am consoled by the fact that metals are a real value and not a "fiat currency".
Bitcoin always seemed like a scam to me, and I have yet to hear anyone make a sensible argument telling where the value comes from.
JMHO------------DR
