It’s a theory about processes, about the sequences and causal relations among things that happen, not the inherent properties of things that are. The fundamental ingredient is what we call an “event.” Events are things that happen at a single place and time; at each event there’s some momentum, energy, charge or other various physical quantity that’s measurable. The event has relations with the rest of the universe, and that set of relations constitutes its “view” of the universe. Rather than describing an isolated system in terms of things that are measured from the outside, we’re taking the universe as constituted of relations among events. The idea is to try to reformulate physics in terms of these views from the inside, what it looks like from inside the universe.
“the history of the universe is constituted of different views of itself.”
This just makes too much sense. You can't define something based on its technical composition, because there's so much more than meets the eye. Instead, you have to take into account how all of something's many moving parts live in relation to the events of their life. One thing's experience of life is completely different from another's, even when two things you're comparing seem exactly the same, because at the very least they were created at different times, within a unique environment, and by the hands or creative forces of someone or something that is also wholly unique.