Von Neumann-Landauer limit
The usual extropian retort to this limit has been "reversible computing," but as far as I can tell there has been little work on reversible computing hardware -- far less than quantum computing. It looks like the University of Florida made some hardware in the early 2000s. Can anyone offer insights about why hardware research is so scarce here? Are there reasons to think it's a dead end prior to fabricating anything?https://en.wikipedia.org/wiki/Reversible_computingEDIT: searching Google Scholar, it looks like only ~50 papers/books mention reversible computing in the past year, compared to 1000+ for quantum computing.