All Natural Numbers Are Either Happy or Sad. Some Are Narcissistic, Too
The number 1 is among the happiest numbers, 4 is sad, and both are narcissistic
![All Natural Numbers Are Either Happy or Sad. Some Are Narcissistic, Too](https://static.scientificamerican.com/sciam/cache/file/536BBA71-E627-4DB0-95D3A37002DB1CFD_source.jpg?#)
The number 1 is among the happiest numbers, 4 is sad, and both are narcissistic
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