Or is that a three-hour hike, or is that a whole day I'm looking at? "" If you have a waterfall in there, right out there at the horizon; you look at the waterfall and you go, "" Oh, the water is falling really slowly. "" And you go, "" My god it's really far away and it's a giant waterfall. "" If a waterfall is falling faster, it's a smaller waterfall which is closer by — because the speed of falling water is pretty constant everywhere.