This test was developed by YouTuber BigKnows and he wants to stump you by lining paragraphs of a single number or letter together and asking you to pick out the one difference. If you think this sounds difficult, you’re right. It has been said that only 33% of adults can fully complete this challenge. Try it first without glasses on, and if you are having trouble try it again with your glasses on. If you still can’t get it with your glasses on, you may want to think about changing your prescription.
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