Carl Jeffrey

"AAA graphics aren't possible in the browser" Hold my beer 🍺

Amazing if true, but I'll wait for the peer-reviews to confirm if "free energy from quantum vacuum" exists.

I love these projects because every city is already publishing itself, often unwittingly. Rodin published every towed car in SF in real time. SF noticed and shut the window in 3.5 hours. So many websites and services we use every day are effectively sensors to read world state.

Reframing for my own sanity: World food prices rose for a third consecutive month to 130.7 (April 2026). That is about 29.5 points (18.4%) lower than the all-time high of 160.2 (March 2022).

@TheDoorRestorer You're very welcome Tony. You have a great day too!

@fellowcreative Thank you! Have a great day!

Anyone in Kent, Medway or South East England needing to get wooden doors restored? This guy can probably help.

Human bone? 💭 ➡️ Wolff’s Law (bone adapts to mechanical loads by adding material where stressed & resorbing it where not). Bone remodeling is a dynamic, ongoing biological process involving osteoblasts (building) & osteoclasts (resorbing) that responds to strain energy density…

When I was at Apple, I loved working on micro interactions that you see all over the OS. Now that I’m not an apple I still like to solve for these little problems that really annoyed me. In this case, I designed a backspace button with a speed controller, so by just pressing it you can delete by letter and then immediately by word as you stretch it, without having to wait (like it usually does on the OS) and then if you stretch a little more, you can speed delete through words… I’m also working on another one where you can repair the words if you over-deleted it by accident 😜 (it also has haptic feedback, which makes it really fun)

Every time Google Maps gives you directions, your phone does this. 14,671 streets searched to find a single 2.3 km route across Naples. It's called Dijkstra, the undefeated king of shortest path since 1959. Until last month. For 66 years, every GPS, every flight booking, every internet packet route ran on the same algorithm. In 2024, Robert Tarjan and four co-authors won Best Paper at FOCS proving Dijkstra was optimal. The world's most-used algorithm, certified untouchable. Eight months later, a team at Tsinghua led by Ran Duan published a paper proving them wrong. The catch is in what "optimal" means. Tarjan's proof showed Dijkstra is the fastest possible algorithm IF you have to output every point sorted by distance. The Tsinghua group noticed something the field had quietly assumed for 41 years: finding the shortest path does not actually require that sorting. The problem just asks for the distances. They combined Bellman-Ford's batch updates with a recursive partial ordering trick from Duan's own 2023 paper. Instead of sorting the frontier, they cluster the boundary nodes and only explore the representatives. The new bound is O(m log^(2/3) n), beating the 1984 ceiling. Best Paper at STOC 2025. The reframe came before the algorithm. Tarjan did not prove Dijkstra was the best shortest path algorithm. He proved Dijkstra was the best sorted-output shortest path algorithm. The field treated those as the same problem for four decades. They are not. Every speed limit you have memorized has a definition wrapped around it. Crack the definition and the limit breaks. The world's most settled algorithm just got beat by someone asking what problem it was actually solving.

Now you can make the so famous "pothole detector" using Ultralytics Platform as backend. All the compute is offloaded, you have just to make a cool UI to have your detector.

@PeterTarka You might appreciate X-ray artist Nick Veasey who's famous for his X-rays of full size cars. 1854.photography/2018/11/x-ray-…

XRay 🔵

Calendars could be so innovative, the perfect surface.

Nunca vi un mazo de cartas igual... 💯

"The British Cræft Prize, a new national award of £60,000 searching for creative technological and aesthetic inventions. Application window closes 31st August 2026." nationofartisans.substack.com/p/introducing-…

It's pretty crazy that OPPO is making their own Android Operating System (ColorOS) look so much like Apple's iOS. It's the nicest Android version I've seen: oppo.com/en/coloros16/

Ian did a whole talk on this at defcon. It's amazing. youtube.com/watch?v=4cx0RU…

Connor Leahy (artificial intelligence researcher and CEO) is always fascinating and thought provoking.

Wow, they found the original C64 molds!

First time I've ever RT'd an Ad. I've been using Keet on macOS for a few years now and it's excellent; and cleverly decentralised. I highly recommend trying Keet 💯

Interested in decentralised finance (DeFi) ? This post clearly explains why cryptographically enforcing validity at the protocol level (failing closed rather than open) is critical, & positions zero-knowledge (ZK) architecture to achieve whilst maintaining privacy. Interesting!