Maybe quite a bit because his agents videoed me about related physics in 2014 and I gave an invited talk about the physics in 2011 at the DARPA/NASA 100 Year Starship Meeting Orlando.
https://www.bbc.com/future/article/20120321-searching-for-a-starship
https://twitter.com/JackSarfatti/status/1323385493623504897?s=20
https://blog.adamkehoe.com/azhazha-book-analysis/
https://blog.adamkehoe.com/list-of-national-databases/