alt Hacker NewsJust, Devil's Advocate, but what would be the benefit of your career if all humans (or even just a few billions of humans) are going to die?
I think it's reasonable to assume that if it's not worth breaking the NDA, it's likely not an existential threat for the vast majority of humanity.
Now, does that mean that people who currently work upper-middle class knowledge work jobs aren't in for an exceedingly harsh economic reality check? Absolutely not.
But that's not really as serious as an existential threat to humanity.
I doubt you are asking in good faith, because I suspect a good faith interlocutor would have worked this out on their own, but I'll proceed anyway.
On the one hand, you've potentially got an indeterminate number of future comfortable years based on a subjective assessment of how long you think it takes catastrophe to materialize, with the downside that you can't warn anyone and so no one will stop the coming catastrophe.
On the other hand you've got the immediate assurance of your current career being gone and high likelihood that you'll struggle financially as a result, with the upside that you can provide a warning to the public that they will almost certainly ignore and catastrophe comes anyway.
Given the risk/reward assessment of those two options, what do you pick?