Interesting to see this being discussed here I don't think that LENR would influence crypto a lot but ultimately both fields of technology will most probably lead to a much greater degree of decentralization and personal freedom. If you do not rely on "the grid" anymore to receive energy and heat, then a different form of lifestyle suddenly becomes feasible and people might also start to experiment with different forms of society (like the described non-scarcity scenario where people just "share" their possessions). But I think it will take a while for this to happen as the desire to "own" something is most probably embedded deep in our social structures.
I don't think that the desire to possess things is inherently "human" as in the early days of being hunter-gatherers we also didn't have the concept of "property", but it will take time for society to adopt.
I'm sure other techniques like proof-of-stake of directed acyclic graph ledgers (like IOTA) will succeed in the long run.
I totally agree. The vision of IOTA is essentially the described "zero-marginal cost society" where stuff is shared and most things are free. I can recommend the book by Jeremy Rifkin which covers exactly this (also in the context of the next "revolution" - the Internet Of Things).
Btw. I am happy to see IOTA being mentioned here as I am one of the IOTA core developers