Is the universe a 2D hologram? Experiment aims to find out.

http://www.livescience.com/47600-universe-2d-hologram-holometer-experiment.html

Quote :

The experiment is basically gauging the universe's information-storage capacity, searching for signs that locations and time aren't precisely defined, researchers said. For example, all the information in the universe may actually be contained in limited two-dimensional packets, just as images on a TV screen are constructed from numerous 2D pixels.

Quite fascinating.