Our universe isn’t just described by mathematics, but it is mathematics. Specifically, it’s a mathematical structure.

Our world doesn’t just have some mathematical properties: it fundamentally has only mathematical properties.

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Why is mathematics so spectacularly successful at describing the cosmos? In this Ri talk, MIT physics professor Max Tegmark proposes a radical idea: that our physical world is not only described by mathematics, but that it is mathematics. He shows how this theory may provide answers to the nature of reality itself.

This event was filmed at the Royal Institution on January 30 2014.

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