User blog comment:BraveheartA7X/Resistance Universe/@comment-74.129.48.220-20100416110556

Have you forgotten that the Prometheus Weapon and the Gray Tech that it was made of are 60 million years old? Modern man has only been around for about 100000 years. A bomb of that magnitude would also require antimatter to make it if it wiped out most of the life on Earth. As far as I know, the Chimera don't even have antimatter, the most powerful source of energy in the universe.