is it a ponzi or is it a buuble?
Make up your mind. For example bubble was the marihuana stocks. Ponzi is when there is no inherit value or utilty in the asset and it keeps growinf till it goes to zero when everyone founds out.
BTC could be in a bubble, but it is not a ponzi.
That's right, and for those who are interested in a detailed research here's a
good article on why Bitcoin is not a Ponzi scheme. Probably one of the best proofs is the following(citing from the article): "Ponzi scheme promoters sometimes try to prevent participants from cashing out by offering even higher returns for staying put." Bitcoin holders can cashout whenever they want without someone preventing them from doing so. There are also other characteristics of Bitcoin that no Ponzi scheme possesses, but this one is very convincing, imo.