That's my first question. 2. If that's true, why do they have different masses? 3.Since everything is made of point particles, do the fundamental forces give the actual "size" to the particles? 4.Lastly, if they are all points, is this why matter can be compressed all the way into a black hole singularity or a singularity at the big bang? because you cant ever reach the edge of a point, just get infinitesimally close to it.