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I know it’s wrong and that I’m going to Internet hell for admitting to it, but there’s a smell when Grandma would light her cigarette in the hot box car with the windows up that I find nostalgic to this day even though I find the concept of smoking in a car repugnant
It’s just a thought exercise. There are several reputable YouTube videos on this topic. None of them claim that the speed of light isn’t the speed of light. They’re just demonstrating that we can’t prove it with current technology. Similar to the difficulty it took to finally prove that one plus one equals two. We know that’s correct, but it took years to prove it.