Do you ever wonder if you can trust your own thoughts? Maybe you have looked at pictures of your childhood and have been confused when you saw the old, blue family station wagon that you vividly remember as being red. Maybe you remember you're your high school gym teacher having a handlebar mustache. But, at your ten-year high school reunion, he tells you he's always been clean shaven. Or perhaps you recall Donald Trump defeating Hillary Clinton in the 2016 presidential election. Oh, wait, that might have happened. I'm pretty sure that happened. That happened, right?

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