If you somehow stumbled onto this post, check here instead!: <a href="https://news.ycombinator.com/item?id=30071442" rel="nofollow">https://news.ycombinator.com/item?id=30071442</a><p>It links to the actual Google post and has more comments. Guess I was too eager to post that I forgot about context!
Linked from the Google blog as "the full technical explainer":<p><a href="https://blog.google/products/chrome/get-know-new-topics-api-privacy-sandbox/" rel="nofollow">https://blog.google/products/chrome/get-know-new-topics-api-...</a>