OK Go are known, in addition to their music, for their quirky videos, particularly a no-edit style that reduces “production values” (and costs) while making the whole thing that much more impressive. They’ve done a Rube Goldberg machine and a sound generating car-obstacle course combo. Now they have an entire video based on optical illusions.
One of my favorite things about optical illusions is not that they show that our brain can be tricked (which it can). It is that optical illusions are entertaining proof that the reality we perceive is a processed version of actual reality. Optical illusions represent a hack of that system.