The description below was taken from the original YouTube video’s description by PBS Space Time.

Existing Theories of Everything have not yet produced experimental evidence that solves the fundamental challenges facing physics. That lack of progress has opened up a sea of controversy, from disagreements about the very necessity of TOEs, to questioning the cost/benefit of mega-billion dollar particle accelerators in search of them, to the emergence of competing TOEs from physicists outside of the academic community. In this 90 minute chat we dive into the existential questions around TOEs.

Special thanks to Brian Keating, Lee Smolin, Sabine Hossenfelder, and Eric Weinstein for helping us create this great event.