High School Is perpetual motion a forbidden topic in the scientific community?

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SUMMARY

Perpetual motion machines (PMMs) are deemed impossible due to the laws of thermodynamics, which dictate that energy is always lost to the environment. The discussion emphasizes that reliance on large language models, such as ChatGPT, for scientific inquiries is misguided, as they often propagate misinformation. The moderators of the forum have classified PMMs as a pseudoscience and have locked the thread to prevent further discussion. The implications of perpetual motion on the understanding of the universe's beginning and end were also debated.

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TL;DR
If perpetual motion is impossible doesn't that mean that the universe has a definite beginning and end?
I've only just clocked this to be the case. I asked chat gpt and the say big bang has a lot of merit apparently
 
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No. Supposed perpetual motion machines always lose energy to somewhere, which is why true perpetual motion machines are impossible. The universe is all there is - there is nowhere for it to lose energy to. So your analogy is flawed.

Do not trust large language models on physics. They are trained on the internet and there is way too much misinformation and not enough maths.
 
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robotkid786 said:
TL;DR Summary: If perpetual motion is impossible doesn't that mean that the universe has a definite beginning and end?
Huh? I think perhaps you misunderstand what a PMM is. Your statement is a non-sequitur.
robotkid786 said:
I've only just clocked this to be the case. I asked chat gpt and the say big bang has a lot of merit apparently
(1) Yes, but it only says that because it is true (although it is an understatement). You possibly don't really understand the Big Bang Theory either.
(2) Do NOT use ChatGPT as a reference here. The moderators have decided (rightly I think) that it's not appropriate. It makes too many mistakes.
 
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Thread locked pending moderation.
 
robotkid786 said:
I asked chat gpt
ChatGPT is not a valid reference here.
 
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robotkid786 said:
TL;DR Summary: If perpetual motion is impossible doesn't that mean that the universe has a definite beginning and end?

I've only just clocked this to be the case. I asked chat gpt and the say big bang has a lot of merit apparently
PMMs are a forbidden topic at PF (for obvious reasons). Please follow the Insights Article link in the rules quote below for more information. This thread will remain closed.

PF Forbidden Topics said:
Pseudoscience, such as (but not limited to):
Perpetual motion and "free energy" discussions (see our Insights Article here)
http://en.wikipedia.org/wiki/Perpetual_motion
http://www.skepdic.com/freeenergy.html
http://www.skepdic.com/perpetual.html
 
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Thread 'Estimates — True Size of the Universe?'

I always thought it was odd that we know dark energy expands our universe, and that we know it has been increasing over time, yet no one ever expressed a "true" size of the universe (not "observable" universe, the ENTIRE universe) by just reversing the process of expansion based on our understanding of its rate through history, to the point where everything would've been in an extremely small region. The more I've looked into it recently, I've come to find that it is due to that "inflation"...
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