in the famous words of Keynes, the market can stay irrational longer than you can stay solvent. I fully believe the intrinsic value of the entire crypto sphere is zero dollars, what I'm less sure about is when its followers are going to figure that out.

When you're betting on changes in market price you are betting on the beliefs of others about that price, the beliefs about those beliefs etc., not the intrinsic values of goods or services. (another important insight from the economist)