Jumps

Some jumps are so small that there's no perceived motion at all. And yet, they are called jumps because the motion was not linear -- the moving object didn't travel through every point in the surface, it skipped many. Our walks are jumps because we're taking discrete steps on the ground -- play the footage of a person walking on the road, and she won't seem to be walking anymore... She'll be hopping, skipping -- slowly but surely.

Some jumps are rather big. Imaginary spaceships can jump not only across galaxies but across Universes and cosmoses and realities. Real spaceships... don't jump, because for a jump, you have to come back at some point, or else you leave your ground. That's the difference between a Kangaroo and a bird -- the Kangaroo jumps because he returns to where he started his jump from but a bird flies because she may or may not return.