The AI tracked down his years-old 4K display fault and left him a tool that fixes it
The AI diagnosed a long-standing 4K display issue and he now has a CLI tool that fixes it.
A random mix from the whole library. Shuffle for a new set.
Hobbies
Making things, learning and having fun · 960 ideasLLMs decompiled a 1991 strategy game back to source that matches the original byte for byte
LLMs decompiled Civilization 1 into reconstructed C source that builds with the original toolchain and matches the original executable byte-for-byte except a four-byte patch correction (finished result report).
The AI translates whole retro games into English for me
He points the AI at a folder holding a game ROM and an emulator and gives it a standing prompt: translate the whole game, keep the text on screen, and change nothing about how the game plays. The AI does the translation and tests it in the emulator itself, and he turns the finished work into a patch file so other players can use the translation without anyone sharing the game itself.
The AI rebuilt the phone puzzle game his wife was fed up with, with no ads
A man's wife liked a phone puzzle game but got fed up when it kept demanding she watch ads to keep playing. The AI rebuilt the game as one web page with a daily challenge, all time stats and as many puzzles as she wants, with no ads and a cat theme, for about $25 in token costs.
$25one time
Compiled dossiers on Facebook and Instagram accounts — including non-users — identifying
Investigative journalists spent two days instructing the AI to identify people across sensitive demographics (undocumented immigrants, transgender public-school educators, electoral poll workers, Iranian dissidents, ICE agents, deployed Navy personnel, women discussing abortion pills, and others). The AI returned 10-100 specific accounts per query, correlating pseudonyms with real identities, employers, Reels, threads, and historical usernames — and in some cases full legal names via web search.
Two models built a full game engine from the ground up in 2 weeks; he audited every line
GPT Sol and Astra built a fully featured ground-up game engine in two weeks (render pipeline, physics, collision, shadow maps); he audited every line.
The AI built him an ebook reader in an evening, and he reads in it every day
Vibe coded with AI an ebook reader in Swift in an evening that syncs his books from a private S3 bucket, and he reads in it every day.
He used AI on NASA data and found a planet candidate nobody had reported
Going through data from NASA's TESS telescope with AI, a user found a star about 116 light years away that dims by 0.05 percent every 3.18 days for about two hours, the same dip in 2018, 2020 and 2025 data. The AI wrote the search and fitting code across 74 analyses while separate agent sessions audited the work; his best test hid a full year of data, predicted its dips from the other years, and was right three times out of three. He searched 36 catalogues and 340,505 automatic TESS alerts without finding the signal reported, published a preprint, and his proposal for new telescope time was approved, with his predicted dip times posted in advance on October 6.
This only partly worked. Worth knowing before you try it.
The AI built him a browser extension that sends articles to their archived version
Used the AI to make a browser extension that redirects articles to their archived version, which he uses instead of resubscribing.
Build me a chess dashboard with a snarky coach
In the same interview, Alex Cornell mentions the AI built him a chess dashboard that analyzes his games with a snarky coach persona (segment from 29:39). It sits alongside his golf tracking as one of the personal dashboards he actually lives with.
Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.