You seem to be asking me to defend the merits of crypto, which is beyond the scope of this conversation. But generally speaking, most of the coins people actually buy are tied to protocols that are attempting to do things that interesting to at least some part of the population.

But, the ability to prove the provenance and ownership of any asset, whether physical or digital, has value. The ability to move value across borders instantly, cheaply, and reliably, has value.

In a world where so much has been made of fake news, imagine if you could know with absolute certainty that a given quote you read from someone in an article is authentic and given to the specific outlet you are reading it at, not taken from somewhere else, perhaps out of context. Imagine if Google integrated such information/quote verification into its search results, and could use it to prioritize sites with real quotes or information. SERPs wouldn’t be full of trash, and small sites that manage to scoop large ones could get instant #1 rankings. Authenticity verification has value.

The possibilities are endless.