To me, one of the most profound questions we can ask is: "So what?" And so what if there's an indefinite number of worlds with alternate "us-es" in them? The "so what," to me, comes alive when I ask myself: "What if I could find a way to get in touch with those alternate mes who made those choices?" That is, persons who, if I saw them now, I wouldn't even recognize because their choices, once small, have multiplied to make them such different people.