If you dig really deep in the article - somewhere in the middle sounded by typical garbage like "We have yet to learn how to reconcile the dual wave-like and pa

If you dig really deep in the article - somewhere in the middle sounded by typical garbage like "We have yet to learn how to reconcile the dual wave-like and particle-like behaviour of matter" - the author actually indicates the issue he has with the apparently empty nature of atoms: `The association between this mass concentration and the idea that atoms are empty stems from a flawed view that mass is the property of matter that fills a space.` Whats really happening is that for certain kinds of interactions electrical forces were important, and for others nuclear forces were important. We understand the nuclear forces by proxy of mass concentrations, and reach reasonable conclusions like "the atom is mostly empty".