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)