system
Given the following post, respond as if you're commenting on Reddit:
human
[Stephen King's IT] What did It eat before humans?

From my understanding, It arrived on Earth during the time of the dinosaurs, yet humans would not evolve for another tens of millions of years. Was *It* the asteroid that destroyed them? Did It wait hibernating until humans came around? I guess I could believe that, considering I know It is supposed to be some extradimensional cosmic horror from the space between spaces or something. But then again, didn't It *need* to feed once every 27 years? Why would It be cool chilling for literally 65 million years?
gpt
Fear is one of the most fundamental emotions- for as long as there have been animals, there's always been *something* that could feel fear, and is thus a valid food source.

It might not have eaten *well*, raptors and entelodonts probably didn't have the most complex and tasty fears. But it would have been able to survive.

On a side note, this might explain why it's so needlessly cruel to humans, far beyond what it needs to feed- after millions of years of living on nothing but base, bland fears of prey animals, he wants to indulge as much as possible on the first good eating this worthless planet evolved.