This wild universe

The universe is a strange and fascinating place, about which we continue -- in fits and starts, two steps forward and (hopefully only) one step back -- to learn. Consider a few recent items:

Remember Toon Town?"Much like characters on a television show would not know that their seemingly 3-D world exists only on a 2-D screen, we could be clueless that our 3-D space is just an illusion. The information about everything in our universe could actually be encoded in tiny packets in two dimensions....