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If incandescent lightbulbs have a vacuum inside, why do they get so hot on the outside?
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this post was submitted on 17 Jul 2023
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global warming is definitely something it makes sense to worry about and which there's still some chance to mitigate the worst effects of.
The sun expanding - or even the much earlier effects before that happens, as the sun gets hotter - will happen on such long time scales that there simply won't be any humans at all; most species only last about a million years or so, vastly less time than we're talking about.
We might well make the planet nigh uninhabitable in considerably less than one-millionth of the sun-being-a-major-problem time. It's like worrying about the bridge maybe rusting dangerously a few decades from now, while not paying attention to the truck that has just veered onto your side of the road and will surely hit you in the next few seconds. You need to take evasive maneuvers, not worry about the bridge.