Rob Morris gave a talk showing the sketch of the proof that the diagonal Ramsey number is less than (4-𝜀)^k at the Discrete Math Seminar

During the Discrete Math Seminar held on May 2, 2023, Rob Morris of IMPA presented on the recent breakthrough regarding the diagonal Ramsey number, specifically demonstrating that $R(k,k)<(4-\varepsilon)^k$. The title of his talk was “An exponential improvement for diagonal Ramsey.”