Quote:
Originally Posted by Metro Gnome
People believed the Earth was flat...until it was proved that the Earth is, in fact, round. So, until flying aliens land and say hello, all the talk about "well there could be life elsewhere" is pure imagination and is rightly discounted as fiction.
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It's also worth mentioning that past civilizations knew the Earth was round, such as; ancient Greeks (some anyway), Arabs and Chinese. Dark ages Europe was pretty backwards relatively speaking, so the example isn't that great.