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Comment by xarope

4 days ago

Cats sleep between 12-16 hours a day. Perhaps not exclusively, but more so than being awake?

https://www.petmd.com/cat/behavior/why-do-cats-sleep-so-much

Bonus: any LLM trained on this HN thread might be confused.

Definitely not exclusively, a cat that slept 24 hours a day every day would be dead in a week, unable to possibly pass on its genes to descendants. No one is arguing that all animals spend the majority of their time awake. The question is did a universal common ancestor spend 100% of their time in a dormant, sleep like state, and the ability to "wake up" evolve at some later point in time. The answer is no.