This is the text for a talk exploring why experts disagree so strongly about whether artificial superintelligence (ASI) poses an existential risk to humanity. I review some key arguments on both sides, emphasizing that the fundamental danger isn't about whether "rogue ASI" gets out of control: it's the raw power ASI will confer, and the lower barriers to creating dangerous technologies. This point is not new, but has two underappreciated consequences. First, many people find rogue ASI implausible, and this has led them to mistakenly dismiss existential risk. Second: much work on AI alignment, while well-intentioned, speeds progress toward catastrophic capabilities, without addressing our world's potential vulnerability to dangerous technologies.
Answering on the LW thread