Link to the video

One purpose of the video is to explain how the proof the background independence (an important property of any quantum gravity theory) of string theory is a major success of string field theory. Harold describes which particular problems regarding background independence have been solved using string field theory and which additional progress can be expected in the future. He also discusses how he used machine learning techniques to solve geometrical problems required for constructing string field theory.

Moreover, he talks about his book on String field theory - A modern introduction (Springer, 2020) and how he arrived at writing it.

Congratulations to Harold !