Entropy Thermodynamics Debate

Discussions center on entropy, the second law of thermodynamics, common misconceptions about reversing entropy, and its application to closed vs. open systems like Earth or biology.

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e.g ELI5 HN wikipedia.org i.e iopscience.iop entropy energy law mechanics reversed increasing second 2nd quantum mechanics universe

Sample Comments

vbuwivbiu Aug 13, 2017 View on HN

but the increase of entropy isn't an illusion

kev009 Oct 29, 2024 View on HN

That's not how entropy works.

tbrownaw Jan 26, 2025 View on HN

Maybe the laws of thermodynamics?

quickthrower2 Aug 21, 2023 View on HN

Energy means nothing without knowing it's entropy!

fermisea Jul 22, 2024 View on HN

Entropy is a measure, it doesn't create anything. This is highly misleading.

Gravyness Jan 5, 2023 View on HN

No, they are lost forever... Humm... Wait I have an idea:Prompt: How can entropy be reversed?Reply: There is no single answer to this question as entropy is a thermodynamic property and therefore its reversal depends on the specific system under consideration. In general, however, entropy can be reversed by either increasing the temperature of the system (thus increasing the average kinetic energy of the particles) or by decreasing the volume of the system (thus increasing the number of co

bilekas Apr 25, 2025 View on HN

"Is there any way to reverse entropy?"

sklogic May 7, 2015 View on HN

Why should I contribute to an increasing entropy?

shuger Jun 24, 2022 View on HN

Entropy cannot be opposed. That's fundamental law of physics.

mensetmanusman Jan 13, 2021 View on HN

Any entropy reduction activity in one area automatically means a lot more heat is added somewhere else :) (2nd law)