I knew it from before.

Mathematics and its history has always fascinated me. Before we had 'alchemists' working from what they saw as sensible premises. Now we know so much more about what we see as sensible

And mathematics is our new theoretical language for describing what might be. One of the ideas I believe but won't ever be able to prove is that, as long as math behind what you are trying to describe is 'sound' and able to be proved as correct, then your idea have a good chance of 'exist'. Not here perhaps, but 'somewhere'

There is for example a theorem from the eighteen hundreds (?) that states that all parallel lines will meet somewhere in the distance, and as far as I understood it, it is correct mathematically, just not in our spacetime

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