If you don't mind elaborating, this point comes up rather frequently nowadays about bitcoin/other blockchain tech. So far the only thing that fell into the "exciting" category for me was ipfs and even that didn't really convince me that it's a viable thing.
I get that blockchain tech is an industry nowadays but from my outside perspective 99% of it and the applications they promote seem rather, for the lack of a better word, self serving. Either that or it's some niche that I don't see will get any mass adoption anytime soon.
Lots of these technologies seem to be technical solutions to problems that are social in nature and thus, again - from my outside perspective, prone to failure. Proof of X tech often looks like stuff that's solved as soon as parties agree on using it in the first place.
edit: formatting