Donald Hoffman on the Space Time Quandry
Anyone who is curious about the origin of the univese should listen to Donald Hoffman, but beware. What you understand right now will be slapped upside the head. Proceed with caution. " So, by material, I think of objects in space and time. Physicists such as David Gross and Nima Arkani Hamed are now telling us that space-time is doomed. By that they mean space-time is not fundamental. And they're not just throwing up their hands and giving up. Physicists have now found structures beyond space-time like the positive Grassmannian and the amplituhedron. This is all new. It has only been in the last ten years that they have, for example, had the amplituhedron but the idea that space and time and objects like bosons, leptons and quarks particles and so forth are fundamental is now no longer the received opinion. There's something deeper like the amplituhedron and beyond that something called a decorated permutation. So, the idea of reductionism is also doomed according to p...