This is a complete non-sequitor. The usefulness of blockchain is not assured because people have been skeptical of useful technology in the past. You must actua

This is a complete non-sequitor. The usefulness of blockchain is not assured because people have been skeptical of useful technology in the past. You must actually propose and defend an application of this technology. Otherwise you are offering my skepticism as evidence itself that blockchain will be useful. If that had merit we can go into business together: you propose a technology and patent it, and then I express skepticism and then - profits!