There's this idea that emoji are bad for communication because they replace ambiguity and nuance with a limited set of preselected emotions, but it doesn't really survive a collision with real-world usage of the thinking face or upside-down smiley.

"Emoji Movie Reviews", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

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There's this idea that emoji are bad for communication because they replace ambiguity and nuance with a limited set of preselected emotions, but it doesn't really survive a collision with real-world usage of the thinking face or upside-down smiley.