article_snippet: So what is it good for?
article_snippet: year've got a few vague ideas for applications.
article_snippet: Another is a compass-style mapping system that encourages wandering instead of pure A-to-B efficiency.
article_snippet: Pocket watches and compasses.
article_snippet: Microscopes and telescopes.
article_snippet: Peep holes, port holes, and wormholes.
article_snippet: Dials, buttons, and other circular controls.