Maxwell’s Demon | A brilliant thought experiment

Maxwell’s Demon is a thought experiment proposed by James Clerk Maxwell in 1867 to challenge the Second Law of Thermodynamics. It imagines a tiny intelligent being (the "demon") controlling a door between two chambers of gas. The demon selectively allows fast-moving (hot) molecules to pass one way and slow-moving (cold) molecules the other way, creating a temperature difference without doing any work. This seems to violate the Second Law, which states that entropy (disorder) always increases in an isolated system.

However, later analyses showed that the demon itself must process information, which increases entropy and resolves the paradox. This connects thermodynamics with information theory, as explored by physicists like Leo Szilard and Rolf Landauer.

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[lucaspierce]

That's because most misundersand what Entropy actually is. Disorder is a Relative Characteristic in Relation to 'Biased' Observers. Entropy Actually is the Tendency of All Complex Systems whether Quantum or Classical to go from one State/Form/Pattern etc to another. It's really more akin to 'Biology's First Law' rather then our Focus on Disorder & Destruction.

Nature is Dual even the Bible Admits as Such meaning there's the Good, the Bad & the Ugly. All in all though as the Fossil Record & other Systems indicate the Universe is getting more Complex and much of Complexity seems Disorderly & Complicated.