olsmeister writes: Ever wonder if the universe is really a simulation? Well, physicists do too. Recently, a group of physicists have devised a way that could conceivably prove one way or the other whether that is the case. There is a paper describing their work on arXiv. Some other physicists propose that the universe is actually a giant hologram with all the action actually occurring on a two-dimensional boundary region.
"The Avis WIZARD decides if you get to drive a car. Your head won't touch the
pillow of a Sheraton unless their computer says it's okay."
-- Arthur Miller