Maxwell's Demon Demystified
MD.MKostic.com <or> http://Maxwell-Demon.MKostic.com

See 2LT *Maxwell-Demon Criticism (Wikipedia) *Carnot's  Réflexions *Entropy *Selected Presentations at Speaking-Lecturing
Also,  Proofs of the Fundamental Laws *Carnot Cycle Efficiency is Fundamentally Misplaced  *Semantic Scholar *Physics4me

Maxwell's Demon (MD) Demistified: James Clerk Maxwell and his Maxwell's Demon followers and protagonists focused too narrowly on effortlessly isolating a single molecule at a time and operating a gate ("effortless gating"), while ignoring the underlying "Thermal motion (ThM)" cohesive micro-structure, i.e., the overwhelming, simultaneous "chaotic thermal interactions" from all other molecules. Essentially, they missed fundamental physics that controlling a single molecule requires "fighting 'orderly disorder', the random but cohesive thermal chaos" of all other interfering molecules, a task that would require much more effort and energy (a major "interference due-work") than operating the MD gate (a minor, in limit negligible "gate-work"). Therefore, such Maxwell's Demon operation is physically impossible, as it would require a major, at least the reversible energy/work to overcome the general thermal chaos, not just to select and gate one particle at a time, as if the other molecules would "self-freeze to watch" the gating of a single molecule. Furthermore, Szilard, Landauer and other MD exorcists, recognizing that the suggested information and storage work is inadequate, introduced "information erasure-cost," an additional fallacy, to 'save' the Second Law, since it accounts for the 'MD gating' operation, a minor "gate-work" only (information storage and erasure, among others) and it ignores the major "interference due-work" required to suppress all other molecules' interferences, see [Kostic 2018, Sect. 5, and Kostic 2020].