What Happens After the Universe Ends?

The video explores Conformal Cyclic Cosmology (CCC), a theory by Roger Penrose suggesting that the universe undergoes endless cycles of Big Bangs and expansions. It explains conformal transformations, which preserve angles in space-time, and discusses how light and massless particles play a role in this theory. The video also covers Penrose diagrams, the implications of CCC on the universe's future and past, and potential evidence for CCC in cosmic microwave background radiation.

Describe the relationship between mass and the ability to build a clock in the universe.

What is the role of dark energy in Penrose's conformal cyclic cosmology?

How does Penrose's theory explain the low entropy observed in the early universe?

What are the potential consequences of civilizations communicating between universes?