Physics is shit

So you have this gravity law. But does particle attract itself?

I.e. does it work like (mapcar (lambda (X) (gravity X Xs)) Xs) or X should be excluded from Xs, before gravity applies?

>>1
Particles (ehh, but see >>10 and below) do self-interact whenever the question arises. This doesn't mean that they interact in the precise way you expect, particularly if your expectations are ignorant of physics.

>>11
Particles can be interpreted purely as field interactions. They are not "obviously" discrete in the end, how did you even come up with that?