Understanding Universality

In this episode I take a long view from the ancient history of Greek Gods through to David Deutch's explanations of the origins of number systems and computational universality and finally through to Ethereum - attempting to explain the concepts of "reach", "universal" and "Turing Complete" and how these are connected in various domains and why any of it is important. How is Bitcoin different to Ethereum? Does it matter? No, I am not selling anything and have no "financial interest" in any of these things (the first time I have needed to make such a disclaimer as my first introduction to crypto has revealed how terribly politicised this subject is, apparently.)

The paper referred to in this video can be found here: https://physicstoday.scitation.org/do...