For those that don't know, Larry was the author of BitKeeper and when he changed the license for it, it prompted Linus to write Git. Guessing if he had never done that, we'd all be using BitKeeper now and Git wouldn't exist.
And Marc Rochkind (the OP) wrote SCCS, as well as one of the more seminal Unix programming books and a ton of other notable achievements.
Looking through the rest of the archive, nice to see that Larry has gone into retirement but makes time away from fishing to continue to tell us how fucking smart he is and how stupid everyone else is. Never change, Larry.
