Probably, the video he mentions is about this: https://www.sciencedirect.com/science/article/pii/S1011134422002287 https://www.sciencedirect.com/science/articl

Probably, the video he mentions is about this: https://www.sciencedirect.com/science/article/pii/S1011134422002287 https://www.sciencedirect.com/science/article/pii/S101113442...