[rahimnathwani]

Or if GGP can't think of an AI-related term they can use HN search. Searching 'rag' shows the term on the first page of results:

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

[Sakos]

Searching for "RAG" on Kagi and Google give some AI-related results fairly high up, including results that explain it and say what it stands for.