Keep on movin' 
pic.twitter.com/YglfW5UMkw
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Scary stuff
wow. the effect on this one is incredible. Even not moving my eyes they seem to swim
Amazing effect!
Holy moly!!
When Objects are alike and in close proximity horizontally, vertically, or diagonally to each other they appear to have the illusion of moving. Will that's it I've watched to many @tweetsauce for the day lol
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