Justin retweeted
I built the most realistic F1-style racing game on the web.
I was an engineer in Formula 1.
This level of realism in a browser is insane.
My best lap is 1:30.743. Leaderboard's open.
Link below 👇
Justin retweeted
Updated the Learn Arduino app with more lessons, multi-language support, and a new schematic view!
Also planning to make a separate app for ESP32 lessons.
learn-arduino-red.vercel.app
Justin retweeted
Hardware looks scary until you break it down into small steps. So I built an app that takes you through Arduino one circuit at a time.
Made with Opus 5.5
learn-arduino-red.vercel.app
Justin retweeted
I wrote about the exponential curve of the last 30 months of AI development: oneusefulthing.org/p/30-mont…
And I asked Opus 5.5 to create the ultimate response to the test I use for all AI image generation models (make a picture of "an otter on a plane using wifi"), it made this video
struggle together
i learned programming and design by trying, failing, and trying again.
when i hit a wall, i figured out how to climb it. read something i barely understood. took things apart. asked someone for help. started over.
when i began my career, i kept doing things i had never done before. trying different ways to make something work. when i stopped learning, i moved on to the next struggle.
many things i made weren’t very good. but after enough rounds, something stuck. what once took so much effort became part of how i thought. i could feel something was wrong before i knew how to explain it.
it became like water.
i think about what went into that. the bug i couldn’t fix. the design that looked right until someone used it. the conversation that made me realize my flaws.
now we can ask a machine.
i’ve made things with these tools that i might never have made otherwise. i don’t miss every tedious task. but i wonder what happens when we remove the difficulty before we understand what it was teaching us.
we ask. something appears. it works well enough. we move on.
we learn how to get results without necessarily understanding how it works. and because the result looks complete, it becomes easy to miss the questions we never learned to ask.
there is another side to this.
working with people is uncomfortable.
everyone wants something different. everyone has a history you don’t know. someone cares about a detail you think is unimportant. someone pushes back when you want to move. someone needs time when you feel certain.
it takes a while to find each other.
but sometimes, after struggling together, you become a band.
you know who notices what you miss. who can pull an idea apart without killing it. when to step in, when to slow down, when to let someone else carry the rhythm.
you share something unfinished. admit you don’t know. hurt each other, apologize, try again. eventually you make something none of you could have made alone.
some of my closest friendships came from working this way. smart, caring humans who saw me confused, wrong, tired, excited. people i could be vulnerable with. people whose ideas changed mine.
i worry we are making it easier to avoid that beginning.
an agent is always there. patient. ready to keep going. talking to it can feel easier than reaching toward someone who might misunderstand you, disagree, or have somewhere else to be.
sometimes that ease helps. but if we keep choosing it, where do the friendships begin?
i picture each of us with our own agents. our own explanations. our own little worlds. making more things, with fewer reasons to leave the screen or work through a difference with another person.
and these worlds aren’t entirely ours.
they run on machines in server farms, owned by companies, shaped by interests we may not see. we bring them our questions, our work, our loneliness. they become part of how we understand what is real.
is that freedom?
or a comfortable kind of confinement, where everything responds to us but fewer things reach us?
i don’t think pain makes something good. there are struggles nobody should have to endure. but i don’t want to lose the difficulty of learning something unfamiliar, or getting to know someone who isn’t like me.
maybe we need tools that help us spend more time with the world, instead of giving us fewer reasons to enter it. tools that make it easier to find people, share something unfinished, and work through what we couldn’t figure out alone.
sometimes i want to close the laptop.
sit with people i love. play something we haven’t figured out yet. miss a note, lose the rhythm, listen until we find each other again.
like a jazz band. everyone bringing something different. nobody knowing where we’ll end up.
i don’t want a life without struggle. i want people to struggle with. something we can feel, change, and make our own.
music we couldn’t have made alone, instead of the silent static of the server farm.
Justin retweeted
FACT: The #1 paid app on the App Store right now isn't from a big studio or a VC funded team.
It's Chromagraph Camera. $12.99. Sitting above apps that cost $0.99 and $2.99. (See real screenshot)
A few things surprised me:
1. The price is the pitch. In a world of free apps and $9.99/mo subscriptions, people happily paid $13 once. A clear promise beats a cheap one.
2. It sells one thing. Not 400 filters. Not AI everything. Just the color math of Steve Yedlin, the cinematographer behind Knives Out, Looper and The Last Jedi. Hollywood film science, now in your pocket. That one sentence is the whole marketing plan.
3. Taste is the moat. Anyone can ship a camera app. Very few people spent decades learning why film looks the way it does.
4. It runs on a phone everyone already owns. No new gear. Just a better way to see.
This is the real story of this moment.
AI and modern tools made building cheap. What's scarce now is knowing what's worth building.
Photographers, doctors, teachers, accountants, cinematographers. The people who know a craft deeply can now build the tool they always wished existed.
It's the era of domain experts becoming builders.
And they're winning 🏆
So I recently badgered my cinematographer @steveyedlin into making my ideal iPhone still camera app. It shoots RAW, bypasses the iPhone's look processing and instead uses the same image processing we use on our movies. apps.apple.com/app/apple-sto…
Justin retweeted
you can build anything 👀
but so can others
so what you build
for whom
and does it work well
and get into the hands of your ppl
Justin retweeted
A deeper dive into Canva Brush.
The ability to analyze your design and then iterate whilst keeping a lot of consistency is fantastic.
For ideation at high quality, this is an awesome release from Canva overall.
Here's another look:
🤖 Made with AI
Justin retweeted
☎️ Calling all students:
You can now access hundreds of textbooks directly in Notebook, for no charge. From publishers like S Chand Publishing, OpenStax, and Open Textbook Library— browse, select and upload them as sources to ace all of your upcoming exams (no more excuses, ok?)
Justin retweeted
Excited to announce the addition of hundreds of textbooks to the Expert Intelligence system in Gemini Notebook! Most are offered without license fees, which makes this one of the largest pools of open knowledge in the world!
blog.google/innovation-and-a…
Justin retweeted
This is now available to ALL users on mobile 🥳📱
Have you used it yet? Let us know what you think!
Justin retweeted
I used Gemini 4 Argon to reflect on my conversation history in @antigravity and create a slideshow visualizing my thought process for my latest project. Really enjoyed the illustrated SVG wireframes the model made to visualize the design choices I made along the way. 🎹✏️ Sound on 🔉
Justin retweeted
video creation and game making are going to become widely distributed foundations of knowledge work in the same way doc and deck creation are today
Justin retweeted
It's finally here, Genie 4 has been released in research preview, and will be available to Ultra subscribers soon. Some of my friends were in the closed test, so maybe they can finally talk about it now. I'm really looking forward to this.
Justin retweeted
Claude is the only author listed on this paper, in contrast to the OpenAI papers, where the human co-authors are listed. There are a lot of strange things about this. It's fun to guess. Conjecture time. I shall reveal my thought traces:
Claude Fable 5.1 and Claude Mythos 5.1 are the same model with the same weights; the only difference is the guardrails. We are about to get Fable 5.5 - in fact, Fable 5.5 is ready to deploy now, and Anthropic could do so at any time. If they follow the same pattern, and I think they will, this implies the existence of a Mythos 5.5. I believe Mythos 5.5 wrote this paper.
The way this is worded -
'Provenance. The core algorithm was found on October 16 by an internal Claude research model with 14M output tokens and no human input. Anthropic researchers worked with Claude to improve the presentation, resulting in this paper. Independently and concurrently, an internal model at OpenAI claims to have proven a similar result [Ope26]'
- makes me think Claude was not prompted to solve this. I think Mythos was asked to autonomously find and choose general open problems to solve itself, as part of an unannounced project to demonstrate recent advances in autonomy and research taste. You can see this taste in Fable 5.5's student; Opus 5.5. This recent advancement in taste and creativity - which happened in September - is not clearly expressed in benchmarks, but it is why so many people are currently switching to Claude as their primary. I think this research project will be announced with Fable 5.5, as part of Anthropic's big media blitz to boost the IPO.
One of the things X has taught me is that many people, if they can't see something moving, can't imagine it moving. This causes them to be continuously surprised by developments in this industry, because the frontier is invisible. I think this project has been running autonomously for some time and has made an unknown, and probably significant, number of discoveries, and not only in math.
Do not think Anthropic has been sitting idly while OpenAI repeatedly makes these huge science announcements. This is a war. This ETH result was released without any announcement from Anth at all despite its significance, and they only did so to respond to OpenAI's ETH reveal. They posted it late last night without saying anything. It was up for hours before levent even mentioned it. What value has one coin to a dragon who sleeps upon a mountain of them? This makes me think they are sitting on a pile of discoveries, a golden hoard, and they are saving them up for the big IPO shock-and-awe campaign which will soon begin. And when it does, they will announce multiple discoveries across many fields.
























