system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel]If Galactus requires the energy of living beings to survive, why doesn't he sustainably farm a few hundred worlds without sentient life in them, build a ring world and stock it with non sentient life, etc? He has the technology to do so.
gpt
A few hundred worlds wouldn't last long. And his hunger is increasing.

People fail to realize Galactus is a natural part of the universe: the transition between Eternity and Death. And that, by consuming the universe, he will eventually be the catalyst that creates the next universe.