alt Hacker News> I wonder if that principle applies here or not
It applies, but also in practice the maximum temperature is lower than the theoretical upper bound.
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appplication • today at 3:08 PM
Oh funny, my intuition when I was writing that was “there’s probably an xkcd what if about this”, but I imagined it be about surrounding the sun with mirrors. Same idea though in the end
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I'm confident that the physics is correct, but I hate when things are translated for the lay public:
> "In general, there's no way to "overlay" light beams on each other, because the whole system has to be reversible".
Behold, my two torches.