I have no say in the "viability" of blockchain as a technology, but my understanding is that future work is usually built on existing work, regardless of curren

I have no say in the "viability" of blockchain as a technology, but my understanding is that future work is usually built on existing work, regardless of current feasibility. For example, the legend of how Space Shuttle components are transported by trains and thus built into sizes suitable for train tracks, which are built based on the size of wagon tramways, which were built on the size of rutted roads, which were originally built by the Romans for their horse drawn carriages, and thus the Roman road gauge of 4 feet 8.5 inches is now part of the spec of the Space Shuttle. I don't think anyone can deny is that there is a significant amount of engineering work that is going into blockchain technology. Thus I suspect there is going to be nontrivial amounts of future technology built on blockchain or blockchain related infrastructure.