Our brains group letters/numbers into subcategories that enhance survival. I did an exercise once in my Behavioral Science class, and when we had to count the number of i's in a sentence, most people skipped over 4 i's because our brains forget they even exist.
I BET YOU 1398718975185 DOLLARS YOU DIDN'T READ THAT NUMBER. YOU JUST SKIPPED RIGHT OVER IT. YOU DIDN'T EVEN REALISE I PUT A LETTER IN THERE..... NO I DIDN'T BUT YOU WENT BACK AND CHECKED. I WANT MY UPVOTE
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