There are times when performing mental experiments on the properties of space and matter where I have difficulty distinguishing the two from one another. Most times it's easier to assume particles as having a sort of mathematical physical structure, almost like marbles without surface features. Then there are times when it almost seems intuitive to look at particles as though they were fluid distortions of space itself. For that matter, it even seem intuitive to see space-time as a mathematical fluid to illustrate space warping and EM wave propagation. What it comes down to, is I'm really confused as to what particles are, their physical behaviors and properties, and how they relate and respond mechanically to wave and particle collision. Is there an accurate model that encompasses everything that we have observed about particles, or are the atomic models we are using today just best guesses at specific aspects of our observations? That is.. one model works for one set of calculations, while another model accounts for oddities in the first model, and visa-versa. It seems as though the very fundamentals of particle/wave duality must hinge on the understanding of how particles behave and respond to change internally and individually, rather than observing action/reaction averages of their collective behaviors. It would seem impossible to have a ridged set of rules that accurately describe particle behavior without an understanding of what they really are?