Originally posted by Mr Master*note
The point of the story was Byrne introducing Galactus great purpose in Marvel,
aside from balancing it with his existence,
which is to re-create the Marvel Universe
with the energy he consumes across his life-time.That aside, while this was 616 Galactus' future self,
like all Timelines outside the present,
it did take place in an alternate reality.That is, another potential future.
There's also another alternate ending John Byrne made I just discovered at his website:
http://www.byrnerobotics.com/FAQ/listing.asp?ID=3&T1=Questions+about+Aborted+Storylines#57
If anyone is interested, it's pretty cool, involves Doom, nuff said.