This was a good discussion on the topics involved as well; between Jacob Barandes & Tim Maudlin. Though I don't recommend watching this without first getting some familiarity with Barandes's ideas... while there's some explanatory dialog in this video I'm posting, mostly is a discussion. It's nice to see the ideas (politely) challenged and answered.

https://www.youtube.com/watch?v=8xPvxAdmhKM