Once inflation ended—also only a fraction of a second into the Universe’s evolution—it left behind a large, smooth, flat homogeneous Universe whose later evolution is predicted by the traditional Big Bang theory.
Is Dr. Randall using different time scales, or does she need an editor? If she is trying to say that the inflation lasted less than a second, there are clearer ways to say it. Also, But what if some of the dark matter experiences influential non-gravitational interactions too? Also, what does the "also" refer to?
