Crazy dreams help us make sense of our memories

A new theory suggests that dreams' illogical logic has an important purpose.

Credit: Paul Fleet/Adobe Stock
  • If consolidating memories as we sleep is like machine learning, maybe dreams keep our "algorithms" on track.
  • Machine learning is optimized by the injection of a certain amount of nonsense data.
  • Maybe dreams are just weird enough to do the same for us as we sleep.
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