system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel Universe] What is exactly Galactus? why does he have a human resemblance?

is he Human?
gpt
Galactus is the last inhabitant of the previous iteration of the universe. He survived the big crunch, and was birthed in our big bang, as a mind blindingly powerful cosmic force. 

He isn't actually human, and his appearance changes depending on the creature viewing him. To a human, he looks like a big human in a suit, but he would look totally different to an alien sufficiently different from our mind set.