See also: A dump of the stories, comments, and users from the Firebase API as a SQLite database with a full text search index: https://archive.org/details/hackernews-2017-05-18.db
Thanks.
The dump posted claims to cover from 1 to 14566367 (06/16/2017 at 3:03am UTC)
(I read "the story vote count is inaccurate for certain stories because it is only scraped once and not updated" and thought some comments might be left out too.)
So, 145M at min. 10 sec. per comment, that's at least 40k hours worth, probably one order of magnitude more. Just writing time, reading maybe 3 orders of magnitude more.
Modern pyramids, they're impalpable ...