March 9, 2026
Quicksort of chaos
In Memoriam, Tony Hoare
Internet mourns—then double‑checks—the legend behind Quicksort and the “billion‑dollar oops”
TLDR: A blog tribute sparked reports that Tony Hoare, creator of the fast “Quicksort” method, has died, sending commenters racing to verify as Wikipedia updated. The thread split between mourning and a fiery debate over his famous “billion‑dollar mistake,” weighing old-school simplicity against today’s safer, heavier tools—because his work shaped modern software.
A quiet blog tribute lit the fuse: reports say Sir Tony Hoare—the computer science legend behind the super‑fast “Quicksort” method—has passed. The comments swung from grief to confusion in seconds. One reader asked, “Is he actually gone? I see no news,” while another waved a flag: Wikipedia now says yes. Someone even dropped an instant RIP video link and the mood shifted from “wait, verify” to “we’re mourning.”
Then came the rituals and the drama. “Once verified… black bar for the creator of Quicksort,” declared one, calling for that classic internet mourning banner. But the hottest fight broke out over Hoare’s most famous confession: his “billion‑dollar mistake” about the “null reference” (the pesky “nothing here” value that crashes apps). One commenter argued it wasn’t a blunder so much as a necessary exposure to reality—new “safer” languages fix it, sure, but they feel heavier. Others fired back that safety is the point, and Hoare’s honesty about trade‑offs is exactly why he’s a giant.
Memes? Oh yes. Jokes about “sorting our feelings” and “press F to quicksort” popped up as the thread toggled between reverence and fact‑checking. Grief, geekery, and a classic internet scramble to confirm—this farewell had everything.
Key Points
- •The post reports Tony Hoare’s death, learned from Jonathan Bowen, on Thursday, 5 March.
- •It links to Hoare’s Wikipedia page for background information.
- •It highlights two key works: Structured Programming (1972, Academic Press) and Communicating Sequential Processes (1985, Prentice Hall), providing ISBNs.
- •The CSP book is noted as available online, with an archived PDF link via the Wayback Machine.
- •It directs readers to Jonathan Bowen’s oral history of Hoare and to the 2024 BCS FACS FACTS bulletin (issue 2, pp. 5–42).