Recently it was shown by Saad, Shenker, and Stanford that JT gravity in two dimensions is dual not to any particular quantum system but to a random ensemble of quantum systems. I will explain that if one deforms JT gravity by adding a self-coupling of the scalar field, the resulting model is still dual to a random ensemble of quantum systems, with a different density of energy levels. I will also briefly describe work of Maxfield and Turiaci, who made a similar analysis in two dimensions and related it to issues in three-dimensional gravity.
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Recordings of past talks can be found here: https://www.youtube.com/channel/UCw9LdPQ5t7Q7muD0qzn70TA