Autor packs up the ladder to move it across the room, stopping at the opposite wall. He carts the bucket and the drill over as well.

"I have, but not with technology like this," the boy admits, nodding towards the speakers. "But I suspect acoustics are the same everywhere. We can test speakers in certain positions and find out what's the best configuration. Think of it, Joly! Our own stereo system. Isn't this exciting?"