eli5: If space is expanding faster than light in all direction. Why hasn’t the space between our atoms expanded to infinite?

Question

eli5: If space is expanding faster than light in all direction. Why hasn’t the space between our atoms expanded to infinite?

In: 530

Answer 1

The way my physics professor explained it to me in college was that the universe expanding means that spacetime is expanding. You and everything around you are also getting bigger, but since everything is getting bigger, you can’t tell.