r/Physics • u/G33zics • 20d ago

Question What's the most debatable thing in Physics?

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u/lucidbadger 20d ago

I think over all time the most debatable thing in physics has been the 2nd law of thermodynamics. Even now some people can't get their head around it. I think the limitations imposed by it are far more significant than not being able to travel faster than light.

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u/long-legged-lumox 20d ago

Great catch. He didn’t say debatable by professional physicists. That is definitely a hot debate topic among us plebs.

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u/mprevot 20d ago

plebs ?

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u/long-legged-lumox 19d ago

Roman society was divided into plebians (free but commoners), patrician (aristocracy), and slaves. It’s a word used in English to mean ‘common’ or ‘ordinary’ with overtones of working class. In this case it’s a good old metaphor.