The biggest mystery in mathematics: Shinichi Mochizuki and the impenetrable proof

A Japanese mathematician claims to have solved one of the most important problems in his field.

**Hasnain says:**

"Three years on, Mochizuki's proof remains in mathematical limbo — neither debunked nor accepted by the wider community. Mochizuki has estimated that it would take an expert in arithmetic geometry some 500 hours to understand his work, and a maths graduate student about ten years. So far, only four mathematicians say that they have been able to read the entire proof."