No. The paradox makes perfect sense with a technical device. It is conceivable to have fine mechanisms that can be operated with minimal loss of energy and ent

No. The paradox makes perfect sense with a technical device. It is conceivable to have fine mechanisms that can be operated with minimal loss of energy and entropy (not bounded away from zero). Thus, the thought experiment poses a challenge. As the article alluded to, the paradox was solved by the fact that information processing is required, which is also in theory reversible, except for the process of erasing information, which interestingly requires some minimum energy. That then would be just enough to compensate for the energy won from the demon, thus not violating the laws of thermodynamics. The "demon" is nomenclature in parallel with Laplace's demon (a thought experiment with a machine that knows position and velocity of all particles, and thus can compute the entire past and future of the universe, in Newtonian physics). https://en.wikipedia.org/wiki/Laplace's_demon https://en.wikipedia.org/wiki/Laplace's_demon ETA: nicklecompte says it perfectly below: https://news.ycombinator.com/item?id=26912158 https://news.ycombinator.com/item?id=26912158