The Universal Theory Of The Hyperfinite II${}_1$ Factor Is Not Computable

We show that the universal theory of the hyperfinite II${}_1$ factor is not computable. The proof uses the recent result that MIP*=RE. Combined with an earlier observation of the authors, this yields a proof that the Connes Embedding Problem has a negative solution that avoids the equivalences with Kirchberg’s QWEP Conjecture and Tsirelson’s Problem.+