Hitchhiker - Infinite Loop

Thomas Ramboz's Hitchhiker starts off with a mysterious object floating through space and missing an astronaut standing on a floating asteroid. A black hole appears, a ship passes, a balloon animal resides in space - Yet they're all connected in a way that the astronaut can't initially comprehend - An infinite loop. This mind bending short must have taken quite a while to plan out and time correctly, and I think it turned out quite awesome as a result.

Rubix

Created by architect Chris Kelley, Rubix is a conceptual demo simulating the equivalent of a world that could be manipulated in the style of a Rubick's cube yet still retain it's functionality after being modified and rotated, Inception style resulting in a large amount of new combinations of one world. All that came to mind while watching this was ideas for some mind bending new videogame that could mix puzzle elements with exploration. Hey Valve? Here's your gameplay hook for Portal 3.