If you&#x27;re finding the paper too dense, Philip gave a extremely entertaining talk on the same subject at Strange Loop this year: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=IOiZatlZtGU" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=IOiZatlZtGU</a>