The original Maxwell daemon experiment didn't work because there was some "work" hidden in the formulation. A few days ago I was reading this https://phys.org

The original Maxwell daemon experiment didn't work because there was some "work" hidden in the formulation. A few days ago I was reading this https://phys.org/news/2018-09-quantum.html https://phys.org/news/2018-09-quantum.html (didn't get on the frontpage), but it's about the difficulty of disappearing quantum information. As a layman, I can imagine that decoherence plays a similar role in these thought experiments. Maybe perfect transfer of quantum information is impossible. It would be a nice merge of Schrodinger's cat with Maxwell's daemon. :-D