That doesn't take technology into account, though. Not arguing one way or the other, but humans are well advanced beyond any species, and are ingenious and inventive to boot. I don't think humans are so easy to wipe out, not on the timeline predicted.
Not at all. Many humans are definitely surviving this no matter what. It's just the extra 2 billion or so that won't have access to whatever new "technology" is needed to survive.
