Wow! I find the 3D illusion so convincing that I find myself wondering "How do those people levitate off the playing field?!" I wonder if the effect is as strong when there are stereoscopic clues that the configuration actually stays flat. Speaking of cool effects that can only be viewed from the air: Someone should suggest (in the spirit of some fringe speculations about crop-circles from a few years back) that the only way in which these people can possibly create these highly synchronized and precise effects is if they are extraterrestrials obtaining guidance from a craft observing from overhead. Likewise, Andres Amador (see http://www.viralnova.com/beach-art/) must be an alien, since what he does is humanly impossible. Jim Propp On Mon, Feb 10, 2014 at 5:01 PM, W. Edwin Clark <wclark@mail.usf.edu> wrote:

Is this cool or not?

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