You're lying in bed at 11 PM, finally relaxed, when your brain decides to upload: that time in 2009 when you said "you too" to the barber who wished you a good haircut. Your body goes rigid. You've now replayed it 47 times in four minutes, each replay somehow more vivid than the one before. The barber is definitely still thinking about it. He tells people. There's a Reddit thread. You get out of bed and reorganize your sock drawer for forty minutes, hoping your brain will find something else to betray you with by the time you return.