Is the Universe an Isolated System?
Most recent answer: 12/31/2013
- Swarit Sharma (age 16)
Rampur Bushahr, Himachal Pradesh, India
We don't know for sure if our universe is an isolated system. Your idea about how it might not be is reasonable. Susskind and Bousso () have recently argued that the need for our universe to have horizons is important to understand quantum decoherence, i.e, how any sort of familiar classical world can emerge from quantum ingredients. I have no idea if that's right.
(published on 12/31/2013)