There are very clear and plausible pathways from AI to human extinction level events, regardless of how small you think the probability is.

So yes, it very obviously is an extraordinary claim to say there is 0% existential risk.

There are no clear and plausible pathways to human extinction level events that AI makes worse or more likely in any way. It is obviously not an extraordinary claim at all.

Good god. You are burden shifting. a) big claim no evidence. b). says a has no evidence; therefore, I will continue to not let fear manipulate me into believing a claim without evidence.

I have a bridge to sell to anyone who believes a big claim without evidence.