And also "we only observe them when they're interacting" - that process itself, the observing is also just made up of such interactions so at every step of the

And also "we only observe them when they're interacting" - that process itself, the observing is also just made up of such interactions so at every step of the way there are these interactions, and those are basically the only ones we have direct access to, not the particles themselves. So it makes a lot of sense actually.