Professor Russell will have an 'Ask Me Anything' session on Monday, December 16th. He'll be answering questions from 9-11am PST to discuss his recent book 'Human Compatible' or anything else. You will be able to post questions starting at 8am. The AMA will be live on the front page of https://www.reddit.com/r/books.
Edit 12/16: the AMA is here https://www.reddit.com/r/books/comments/ebh0qg/i_am_stuart_russell_the_coauthor_of_the_textbook/