I spend a lot of time on this blog explaining a physical spacetime model and the underlying metaphysics. In this series of posts, each entry poses a physics question for the spacetime model, along with the answer. A separate series of posts answers metaphysics questions.
Physics Question #2. What is the inflaton (the field responsible for cosmic inflation)? In my spacetime model, spacetime is self-generating. Spacetime itself is the inflaton. Points are defined recursively, with the result that the number of points increases from N to 2N at each discrete time step. This is an extremely rapid expansion. It never stops, so spacetime is always inflating.