““It seems an almost transcendental quality of the mind that we can even know we see the world differently from others — and more amazing yet that we can share our separate realities with one another. Having spent a lifetime developing one mental map of the world — our own — consider the conceptual leap needed to make that lateral shift into an entirely different framework. Nonetheless, we do it all the time. Embedded within the simple phrase, “What if...?” lay a plurality of worlds.””