I'm pretty baffled by the degree of skepticism expressed here in response to some of Jacob's claims.
After the events of the summer it feels like it takes a lack of imagination to not see a few plausible routes to disaster. It may be reasonable to believe these outcomes are not very likely or that we can stop before going too far (I tend to disagree). But I can't imagine doubting that the capabilities will soon be there to realize some of those paths.