Science & Futurism with Isaac Arthur cover image

Higher Dimensional Aliens

Science & Futurism with Isaac Arthur

00:00

What Is a Dimension?

James Scargill of UC Davis made a compelling case that it might be possible. But there are all sorts of problems with physical forces and effects, he says. We also need to ask what exactly a dimension really is, James writes. It's critical to string theory, most versions of which call for 9 dimensions.

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