I find it neat that the simulation appears to "pulse" almost like a heartbeat, because so many of our activities are tied to the clock and state changes disprop

I find it neat that the simulation appears to "pulse" almost like a heartbeat, because so many of our activities are tied to the clock and state changes disproportionately occur on the hour or half-hour. It's especially noticeable when using the "fast" playback option. How different this would have looked before the invention of mechanized timekeeping!