Originally posted by Branlor Swift
Galactus was hungry in the alt future battle. And iirc Billy Spectre were screwing up a whole fukton of time and space in their fight including other realms.
I can see this as well, but the Spectre, and Cpt. Marvel's battle was waged on a different stage than the Old King Thor, and Galactus battle. Galactus is the disclaimer in this case because he is not magical, but instead a force of nature in the physical world, as opposed to the stage that the Spectre, and Cpt. Marvel waged their battle, which took place in the metaphysical world.
Things are often not quite the same when trying to measure the two. If Capt. Marvel had to battle in the Physical world, against Galactus I'm betting that the power display would have been portrayed differently. The only other answer is that the Super Charged Cpt. Marvel folds a possible future Galactus like a beer can.