The last third of the talk where he actually discusses work that could be considered to regard generative agents appears to be a deep learning version of the Bayesian model presented three years ago accompanying the initial release of the Omniglot dataset.
Perhaps interesting for graduate students and professors and industry professionals, but i think is pretty far beyond comprehension for those with only basic understanding of machine learning.
http://science.sciencemag.org/content/350/6266/1332.full
Pdf can be found free by googling the paper title