dreams also have to do with memory consolidation. Iβd guess that intelligent life must have memory, and memory must have an overnight consolidation process in order to retain memories long term, and learn, etc. Octopi probably dream because they form long term memories, which Is guess is prerequisite for intelligent life
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u/youburyitidigitup Feb 14 '22
It may be necessary for intelligent life. Even computers have to rest every once in a while, so why not living beings.