Dr. Hannah Fry explores a paradox at the heart of modern math discovered by Bertrand Russell, which undermines the very foundations of logic upon which all math is built. These flaws suggest that math isn't a true part of the universe, but might just be a human language - fallible and imprecise. However, Hannah argues that Einstein's theoretical equations, such as E=mc2, and his theory of general relativity, are so good at predicting the universe that they must be reflecting some basic structure in it. This idea is supported by Kurt Godel, who proved that there are aspects of math we simply have to take on faith.