Talk:Earth/@comment-5562625-20190803205115/@comment-68.206.188.147-20190915133735

Or by strengthening the magnetic field around the planet. Numerous sci-fi ways to survive such things. Furthermore, this is an anime. It uses anime logic. It probably rides on the premise that humans were lucky enough to make a breakthrough in wormhole technology right when they needed it, but not lucky enough to make other technological breakthroughs that would have prevented the asteroid impact. After all, it's 300 km, that's frigen huge. Not much tech that can stop something like that, even in more futuristic settings such as Halo or something.