#in case you aren't a glasses-wearer and have difficulty with these
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TIL you can have animated stereograms. Wikipedia gives this example (https://en.wikipedia.org/wiki/Autostereogram):
#it's a swimming shark#in case you aren't a glasses-wearer and have difficulty with these#if you do wear glasses: take them off then move the image too close to your face to focus correctly#then slowly move it away until it comes in focus#repeat a couple times if you need to until you see the shark#if you don't wear glasses... I don't know what to tell you#I couldn't do these until I started wearing glasses and once I did they were suddenly easy#actually the same method works with my glasses on it's just less comfortable for my eyes#I think having to go back and forth between glasses and not in my day to day life must have made my eyes relax more easily or something
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