How do we know that most of an atom is empty space? And since that is so, why can’t we just walk through solid objects?

Question

How do we know that most of an atom is empty space? And since that is so, why can’t we just walk through solid objects?

In: 13

Answer 1

this question reminded me of one of my all time favorite movies, Mindwalk (1990).

They cover the empty space of atoms in a [very ELI5 way.](https://www.youtube.com/watch?v=FvZ7RPuiBYY&list=PL1A5A55D5BAEE3C17&index=6)
“Matter is solid because probability patterns are difficult to condense?”