@@ -13,3 +13,5 @@ The job of a search engine is to retrieve useful information for users. This is
* Anna's Archive is ~0.5PB. This contains a substantial fraction of books and papers. These are plausibly higher-quality than the general internet.
-* We do need general internet data for breadth of knowledge etc. This runs to PB (Common Crawl etc). Apparently billions of pages per month.
+* {We do need general internet data for breadth of knowledge etc. This runs to PB (Common Crawl etc). Apparently billions of pages per month.
+* Common Crawl doesn't even get PDFs because they're complicated to process! We need those.
+}
* {There is lots of alpha in weird corners of Twitter and also Discord. It would be useful to scrape these, though people would complain.