Nobody who says AI is likely to kill us all can demonstrate a plausible sequence of events, with logical causality linking the events together, that leads to mass extinction. It's all very handwavy.
Steven Pinker said it pretty well:
> The AI-existential-threat discussions are unmoored from evolutionary biology, cognitive psychology, real AI, sociology, the history of technology and other sources of knowledge outside the theater of the imagination. I think this points to a meta-problem. The AI-ET community shares a bad epistemic habit (not to mention membership) with parts of the Rationality and EA communities, at least since they jumped the shark from preventing malaria in the developing world to seeding the galaxy with supercomputers hosting trillions of consciousnesses from uploaded connectomes. They start with a couple of assumptions, and lay out a chain of abstract reasoning, throwing in one dubious assumption after another, till they end up way beyond the land of experience or plausibility. The whole deduction exponentiates our ignorance with each link in the chain of hypotheticals, and depends on blowing off the countless messy and unanticipatable nuisances of the human and physical world. It’s an occupational hazard of belonging to a “community” that distinguishes itself by raw brainpower. OK, enough for today – hope you find some of it interesting. (https://marginalrevolution.com/marginalrevolution/2023/03/st...)
You know what's most likely to lead to human extinction, and has been for all of our lives? Nuclear war. EY argues that we should bomb "rogue" datacenters and that is obviously and immediately more dangerous than anything he has proven about AI. What does he think would happen if the US bombs a datacenter in China or Israel bombs one in Iran?