SEO, AEO, and GEO aren't the same thing
Generative Engine Optimization (GEO) is the practice of shaping content so an AI system is more likely to pull from it and cite it when generating a longer, synthesized answer — distinct from ranking (SEO) or directly answering one specific query (AEO).
The term originated in academic research studying how content characteristics affect visibility inside AI-generated answers, and has since become a broader shorthand for optimizing content for AI search generally. The underlying idea holds either way: a search engine ranks pages, but a generative engine synthesizes an answer out of several sources — and it has to choose which sources to actually use.
That's a different competition than ranking #1. A page can be the top Google result and still not get pulled into a generated answer if its content isn't structured in a way that's easy to extract and cite accurately.