WTF?! is a header for the name of feature, but generally also my reaction to whatever is contained within one of the WTF?! pieces.
You might want to watch this before you read what I have to say.
It seems those things he sticks next his eyes produce timed electrical impulses that cause the eyelids to twitch much faster than you could blink, and at exactly the right moments to block light (of individual frames) produced on a screen to create the stereoscopic 3D effect. Essentially, this would let your eyelids do what those $100 glasses are doing. I can only imagine the bulging, muscle-y eyelids we'll see, and how that lactic acid burn will feel the first few times.......however, this seems to be a very convincing fake.