Suppose you had to prove (in litigation) where you were on a specific date. And suppose you had zero independent memory of where you were. There are a number of things you could do to jog your memory. You could look at your phone to see if there are any pictures from that date. You could look at old text messages, emails, or calendar entries to see if they provide some reminder of where you were on the date in question. Now let's suppose you found a cryptic text exchange with a friend...
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