Just a thought experiment, let’s say the earth is flat, looks like many professionals would know, including
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Pilots/ATC/sea captain
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Land surveyor and civil engineers
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Astronomers and Geologists, at least the one dealing with experimental data
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Militaries, at least radar operator and artillery
Just these categories are already a lot of persons, I assume I miss a lot of others. So how many person does it make in total ? 10 % of the population ?
Maybe yore thinking of the counterweight continent from Discworld?
Where do you think Pratchett got the idea?! They got to him first and paid him off so we’d think it was ridiculous!
No joke, it wasn’t a flat earth thing, but I had a coworker years ago who was big into conspiracy theories and he claimed that movies like Men in Black were made to make everyone think that kind of thing only happened in fiction so we’d laugh at people who think it’s real.
When I tried to point out to him that there was no evidence for the things he claimed were real, he said the lack of evidence was proof, because it meant they were hiding the evidence.
So obviously they had a brain because there’s no evidence of one. Checkmate.