Although is huge beyond astronomical, it’s still nothing compared with infinity. This means that if eternal inflation made a space containing infinitely many Level I parallel universes, then you’ll find it containing all possibilities. Specifically, you’ll have to check on average about universes until you find a copy of any particular kind of universe, as illustrated in Figure 6.2. So if you could travel in a straight line until you reached the closest identical copy of our own Universe, you’d need to journey about universe diameters. If you’re willing to
