@vicgrinberg If you don't mind, a Q from a layman who loves science but lacks the math.

Stars are incredibly far away, especially when not traveling at the speed of light. How does all that matter get *here*? Is the age of the universe ancient enough compared to the slow movement of matter moving through space enough to explain it? Did that matter get distributed when the universe was a lot "smaller" than it is today, and clumps of matter were closer together? 1/2