I agree that IoT is rather dreary, but I think blockchain still has a chance to be something interesting.
(And I dig the Adams reference.)
Specifically, it's going to be business discovering that transaction ledgers in Merkle trees are excellent and being sold that as "Blockchain(tm) Technology".
(If someone at work asks you about Blockchain(tm), tell them "oh yes, bits of Blockchain(tm) are excellent, we've been using it even before Bitcoin existed!" i.e., you use git.)