Yeah, those lines from Elon sounded something like from a post-apocalyptic movie where the world was on the brink of extinction.

I agree with you. It could indeed be our last invention that ends up killing us but I think merging with it could prevent that. Yes, we are biological entities, but that is now. In the future, we could just as easily transform into digital entities much like how Musk explained in the podcast.

As always, only time will tell as to what happens.