"Then the energy went somewhere else, but the block is still around somewhere. They can be moved around all you want, but the Legos themselves are indestructible."
"OK, that's fairly simple," said the Director.
"Now here's the problem. We have a kind of energy called potential energy, and specifically I mean gravitational potential energy. All potential energy is based on position, right?"
"I know where you're going with this," Shenika said. "Gravity pulls on us all the time, so the higher we are, the more potential energy we have, right?"
"Basically. So, with this instant movement of yours, it all seems to work except for one thing…"
"Boy, you really get into your explanations, don't you?" Denny muttered.
"Just hurry up," Zeke moaned.
"It would take too long to explain in detail, but with these equations, you shouldn't be able to move up or down."
"What?" Shenika said.
"Huh?" Zeke said.