Isn't everything descriptions, in the end, aka models? Turtles all the way down...
"Two masses attract each other with a force F = m1 m2 G/r^2"
"OK, but why don't they repel each other?"
"That would make life really hard, and we wouldn't be here discussing it ..."
"Two masses attract each other with a force F = m1 m2 G/r^2"
"OK, but why don't they repel each other?"
"That would make life really hard, and we wouldn't be here discussing it ..."