If you find it fascinating and prefer some light introduction to the area, I would recommend the book by the (first two) authors: "Universal Measurements: How T

If you find it fascinating and prefer some light introduction to the area, I would recommend the book by the (first two) authors: "Universal Measurements: How To Free Three Birds In One Move" https://books.google.com/books?id=7O2tDgAAQBAJ https://books.google.com/books?id=7O2tDgAAQBAJ Note that the book focuses on the idea of universal measurement. On the topic of this paper, there is also 1 hour long video by Prof. Bianchi which I found very good to accompany the paper: https://www.youtube.com/watch?v=-SteQN1A33M https://www.youtube.com/watch?v=-SteQN1A33M