If you are interested in this, there are quite a few lectures by Nima Arkani-Hamed available on YouTube. From some aimed at the general public about the big pic

If you are interested in this, there are quite a few lectures by Nima Arkani-Hamed available on YouTube. From some aimed at the general public about the big picture of fundamental physics and the unresolved issues in it to pretty technical discussions of the amplituhedron and the related physics.