Playing Dominoes with Shevy

One of the Shabbat (Saturday) morning activities that Shevy (5) and I enjoy together is setting up long trains of dominoes and watching them fall. It's a lot of work (and often frustration) for a couple of moments of "WOW" but it passes the time together and we have a laugh. Is life like those domino trains? Does each moment knock into and automatically cause the next? Or is life more…