Continuing with the discussion group that will meet over winter break and maybe into next semester. We will discuss some of the background for Betti Langlands, e.g.:

https://arxiv.org/abs/1606.08523
https://arxiv.org/abs/1610.08398,
https://arxiv.org/abs/1611.04078,
https://arxiv.org/abs/1705.04266,

https://arxiv.org/abs/2105.12318,
as well as the ongoing series of talks by Nadler and Yun.