Some observers see red in front of blue, while others see blue in front of red. (chromostereopsis)pic.twitter.com/FTNqQWxkly
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"Chromostereopsis #3" has been updated. http://www.psy.ritsumei.ac.jp/~akitaoka/scolor3e.html …pic.twitter.com/BnI7BrWbxS
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