run them tandem at a certain speed and what is this that looks like life?
At 193 to 194 the description of frame by frame giving the illusion of continuity is a description of the granularity of time and relational events. We now know time and space are not continuous,but comprised of discrete quanta. One event is comprised of the relationship between its elements and to the events that preceded. But events are only possibilities until they are observed, which we call "happen". And they only happen in the way the observer sees them as to that observer. This is so because different observers exist in different times. There is no simultaneity. See Einstein, Albert, Special Theory of Relativity.
The upshot is that each observer exists in each "frame" or grain of reality differently. So everything, every event, exists in its own separate universe.