timunderwood (@timunderwood) header
timunderwood (@timunderwood) profile picture

Founder of xCheck, exit to FLYR Labs. Move fast and fix things.

Los Angeles, CA
Joined March 2008
Photo by timunderwood (@timunderwood)Photo by timunderwood (@timunderwood)Photo by timunderwood (@timunderwood)Photo by timunderwood (@timunderwood)Photo by timunderwood (@timunderwood)Photo by timunderwood (@timunderwood)Photo by timunderwood (@timunderwood)
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In the 2000s, the brightest minds of my generation were deployed on how to get a few more seconds of attention, a couple more clicks. Now the next gen is...making reservations at a restaurant.
Instinct CEO Noah Shinn says agents will let restaurants give tables to birthdays and anniversaries over whoever clicks first "And traditionally, because of the way that the internet has worked, at least for reservations, it's been first come first serve. So anyone that comes in, no matter how important or how not important it might be, whoever gets in first gets the reservation." "But what if you had the ability for the agent to be able to communicate on both sides, communicate, hey, this is important. This is actually the person's spouse's birthday, the 30th birthday, a very special event is coming up." "And the restaurant too can say, let's actually prioritize birthdays or major decade birthdays or major anniversaries or these certain people, I don't know, whatever it might be, right?" "So now with the ability, with all of the logistical burden of having to describe exactly what your case is and what's happening and why it's important. Now we have the ability to perfectly match what does the restaurant want? What does the user want?" "And that will result in more special events for the users being able to actually have a spot in the restaurant."
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the cia must love the idea that you can just hack a foreign system and blame it on a tech whoopsie.
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Whether consciously or otherwise, this is designed for children.
Meta announced Muse Charm: a keychain-sized device with a 2-inch touchscreen, a camera, at least three microphones & a fingerprint sensor to wake it. Ships December. No price. The architecture is the interesting part. Meta reportedly gave it built-in 5G, which means it doesn't need a paired phone & on something this size there's no room for meaningful onboard compute. So the device captures, the network carries & the model runs in Meta's cloud. Sensor at one end, intelligence at the other. That's the same admission as the VR Glasses at the same event, where the processor sits in a separate puck. Both say the limit on wearables isn't chips. It's thermal load & battery mass on the body. Zuckerberg's own framing: if you're not wearing glasses, this is the fastest way to show Muse what's going on around you. Which is a camera, on a keyring, in whatever room you're in. The specs that actually matter haven't been published like battery life, whether capture is continuous or on demand & what signals to people nearby that it's recording. Meta says the layout isn't even finalized. Humane's Pin ran hot & died. Rabbit's R1 underdelivered. This one offloads both the heat & the thinking, which fixes the hardware problem but also creates a different one.
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Vibe coding is exposing the software people actually want, but couldn't get because there's little commercial incentive. Case in point - a working browser build of SimTower by the brilliant Jonahss (who I don't think is on here). wyldcard.io/blog/simtower-re…
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timunderwood retweeted
Formal methods have peaked: Aver now has Asteroids and multiplayer Go. n1bor built Asteroids - with a tiny physics engine, compiled to WebAssembly and running in the browser. @konradhalas “prompted with typos” avgo - two-player 9×9 Go over the web, with the game rules and the entire HTTP server written in Aver. Neither was written by me.
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short openai
cool use case of chatgpt work i heard last night: connect your family calendars and explain your kids' interests. every morning for the drive to school, have it make a podcast that talks about one kid's soccer game that afternoon, one kid's upcoming birthday, some news, etc.
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timunderwood retweeted
I've built my kids an instrument that cannot be played badly. Any key, any two keys, any random bashing... it always sounds intentional: intonation, pentatonic by default. When you shake it, it plays back the notes my kid just played. When you tilt it it changes the vibe. It's called "grajek" Polish for a little fiddler, the kind who plays at a village wedding. Hard to translate, but easy to hold for the little hands. Under the toy there's a "serious" engine: 11-limit just intonation in the spirit of Harry Partch, sympathetic string resonators, an echo tape that ages every pass, and no BPM anywhere (the pulse locks to your playing). Whole thing done on @M5Stack Cardputer-ADV, ~$60 off the shelf.
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Just came out of Odyssey. Obviously Nolan is a film making genius, but few have mentioned the quality of the story. This Homer guy has a bright future.
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timunderwood retweeted
Founder mode means running a company the way a founder can and a hired CEO can't. We don't yet know all the things only a founder can do. But it's not an imprecise term. It's like the definition of a Mersenne prime. We know exactly what one is, but we only know 52 so far.
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timunderwood retweeted
Aver 0.27 “Witness” is finally out, and I’m really proud of it. It ships Artifact Behavioral Certificates, the ABC thing I’ve been hyping lately. Aver can now automatically bind Lean theorems about selected functions behavior to the exact Wasm bytes users actually run. The separate aver-cert verifier is built around a checker-owned Lean, with a thin Rust layer for validation and staging. It treats the producer as untrusted. The sidecar plan which makes it possible is untrusted too: to get a certificate, it must canonically lower to the exact function body found in the shipped Wasm. Then the Lean kernel checks the resulting theorem... Yes, it is paranoid by design. Old-school elevator pitch: "ABC is PCC for behavioral specifications, with the theorem pinned to the exact deployed bytes".
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Overhead wire of God
Before England’s goal in minute 45+2 against Norway, the sensor in the Connected Ball showed no peak in the 'heartbeat of the ball' when in the air, and therefore no evidence that the ball touched the overhead wire and changed the movement of the ball.
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Unbelievable prescient tweet.
Happy Bin Day to all who celebrate.
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#Quake is 26 today. One thought I keep coming back to is what it took to get this shipped: "As 1996 rolled around, not only was id at war with GTI but it was at war with itself...Carmack, feeling like he was the only one running the ship, decided it was time to turn up the heat"
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30 years ago (plus a couple of weeks) I stood in a bus stop trying to explain that Quake - software rendered, 14 fps - was the most terrifying game I had ever played. Happy birthday #quake . Small teams change the world.
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I would like to talk to the product manager at MSFT that thought it would be a good idea to enable reactions to emails and then turn those reactions into more emails.
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In the 2006 hit 'Brand New', the Chicago rapper @RhymefestforCPS claims to "have a loft with a view of the sea". From downtown Chicago, that tower would be almost 62 miles high - practically the edge of space. Maybe the loftiest flex ever.
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I've never been to Chicago, but this feels like something I should have heard about.
🤖 Made with AI
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Zoom should have an admin setting that just starts or ends the meeting at the scheduled time. No warning, no click - 2pm, bang, you're all in the meeting whether you like it or not.
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timunderwood retweeted
You know what's more surreal than building a language for AI to write and humans to read? Talking about it with @JamesWard and @BruceEckel in my second language, making hand gestures to explain language design choices. Thanks for having me on @HappyPathProg! youtu.be/D_mPxGtSzbQ
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