Matter is made up of atoms. Basic. Atoms are made up of nuetrons and protrons with orbiting electrons. Also basic. Protrons and nuetrons are made up of orbiting quarks (not sure about the electrons for they have wave-like properties and I have not found anything saying they are made up of quarks.) Not so basic any more. So far an atom is mostly made up of protrons and nuetrons. Since they are made up of orbitng quarks (UP and DOWN type) they are mostly free space. this means the quarks weigh alot for there size (atoms are also mostly free space.) A pattern also forms here. Everything is made up of smaller particles starting at the atomic level. So maybe quarks are also made up of smaller particles. These sub-sub-sub (super-sub) atomic particles could also be made up of sub-sub-sub-sub atomic particles. This could continue indefinnetly. If this was true the maybe at the sub-sub-sub-sub *10^100 level, particles of this level could shrink the distance between them by 1/10 of origianal. This could cause an effect that X number of levels up could shrink the distance between patcles of each level by 1/10 then matter that soud be on our size level actualy exsist in the space inside a nuetron. Nothing says this is imposible!