Residuality is very interesting. Have you used it in practice?
Wanted to say thanks for posting this. I found the NDC talk interesting and well presented. Will try to read more about it and, as an exercise, try applying it to my own solutions to see what insights I could gain.
As well as the book (https://leanpub.com/residuality) the author has one on the philosophy of architecture (https://leanpub.com/architectsparadox).