During the epoch of cosmic inflation, which of these properties of the universe changed rapidly?
A) temperature
B) pressure
C) symmetries of the four forces
D) the separation of two points in spacetime

Question

Quizplus · Accepted Answer

During the epoch of cosmic inflation, the universe expanded exponentially, which means the separation of two points in spacetime increased very rapidly. This rapid expansion is a key feature of the inflationary period, distinguishing it from more gradual expansions at other stages of the universe's history.

During the Epoch of Cosmic Inflation, Which of These Properties