Over one hundred years ago, a pioneering thinker changed how we understand space and time.
He told us that they're both intertwined in a fabric that permeates the cosmos, comprising three dimensions of space and one dimension of time.
This now-famous visionary's name? The mustachioed Hermann Minkowski, of course – Albert Einstein's math teacher.
And no, he did not flunk Einstein, who then added gravity to the flat "Minkowski spacetime" and 'birthed' a curved spacetime.
In fact, one can say that Einstein flunked Hermann, as Einstein deemed Hermann's way of thinking "superfluous learnedness." At first, anyway.
But why does the Universe have three spatial dimensions and one temporal dimension? A weird new mathematical theory offers a surprising possibility:
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