Some background: My SO told me an anecdote about her metaphysics class where her professor asked them how can they proved that the earth is round and the prof stumped every answers to his question even they gave facts (don’t worry, it’s just an ice breaker, it was just for fun as a class introduction). I don’t know any specific details on how the professor replied to the students and I’m just curious how it was possible to prove that the earth is round philosophically, or at least, in the perspective of philosophy.
Another reason I’m curious about this is because I remember watching that Vsauce video about the past where Michael talked about the Last Thursdayism. I have a gut feel that deductive reasoning or philosophical razors have something to do with this.
EDIT:Some terminologies
In: Other
I mean, ancient Greeks knew the earth was round by 500 BC…but that was using math not philosophy.
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