Yitang Zhang, the mathematician behind the 2013 breakthrough on bounded gaps in primes, posted to the arxiv today a result which (if correct) comes close to proving the nonexistence of Landau–Siegel zeros: https://arxiv.org/abs/2211.02515. To give a sense of the scale of this claim: If correct, Zhang’s work is the most significant progress towards the Generalized Riemann Hypothesis in a century. […]