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Attention Wasn't All We Needed
Personal blog of Stephen Diehl - Software engineer writing about technology, programming, and the future
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The latest blog posts to take off on Hacker News. 49,203 posts.
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How to live on $432 a month in America
(For All Expenses)
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Find Your People
Thank you to Bucknell University for inviting me to be this year's commencement speaker. And congratulations to the Class of 2025! Watch the speech on YouTube. Thirty-two...
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MCP is the coming of Web 2.0 2.0
A blog about making culture. Since 1999.
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Caesar's Last Breath
Caesar’s Last Breath — Charlie Sabino.
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How Does Claude 4 Think? – Sholto Douglas and Trenton Bricken
Scaling reinforcement learning, tracing circuits, and the path to fully autonomous agents
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1,145 pull requests per day
There is a recent video of Patrick Collison at Stripe Sessions 2025 stating that in 2024 Stripe did on average 1,145 pull requests per day. Not just creating them, but actually finishing them; "fully shipped into production". All whilst having less than a minute of API unreliability for the
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Loading Pydantic models from JSON without running out of memory
Pydantic’s JSON loading uses a huge amount of memory; here’s how to reduce it.
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The "AI 2027" Scenario: How realistic is it?
Everyone’s been talking about it. JD Vance read it. What does it actually tell us?
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That fractal that's been up on my wall for years
Warning: Math, Handwaving I spent a lot of time doodling in middle school instead of whatever middle schoolers are supposed to do. Somewhere between the Cool S’s and Penrose triangles I found a neat way to fill up graph paper by combining and copying squares.
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I Built My Own Audio Player
In 2025, playing your own music on an iPhone is surprisingly hard, unless you pay Apple or navigate a maze of limitations. So I built my own player from scratch, with full text search, iCloud support, …
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Adventures in Symbolic Algebra with Model Context Protocol
Personal blog of Stephen Diehl - Software engineer writing about technology, programming, and the future
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Trading with Claude, and writing your own MCP server
Ever wanted to check on your portfolio and trade some stocks directly with Claude? Well you’re in luck.
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Improving performance of rav1d video decoder
*on macOS with an M3 chip *slightly more than 1%, on a specific benchmark, without any new unsafe code A while ago, memorysafety.org announced a contest for …
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Planetfall
Gentle readers, I have just wrapped up a fun side project that will be of great interest to a very small number of you. The result of one of the most technically demanding efforts of my career, I a…
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Ancient law requires a bale of straw to hang from Charing Cross rail bridge
The scaffolding surrounding the Charing Cross railway bridge has received an addition – two bales of hay/straw – because an ancient law requires it.
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Why does Debian change software?
When I wrote Why is Debian the way it is? , a year and a half ago, I was asked to also cover why Debian changes the software it packages. Here's a brief list of examples of why that happens:
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You can choose tools that make you happy
Stop falsifying your motivations.
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The scientific “unit” we call the decibel
Celebrating a rare dumpster fire in the kingdom of science.
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Getting a paper accepted
Page 1 Accepts, the Rest Avoids Rejection
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Gemini Diffusion
Another of the announcements from Google I/O yesterday was Gemini Diffusion, Google's first LLM to use diffusion (similar to image models like Imagen and Stable Diffusion) in place of transformers. …
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I have tinnitus. I don't recommend it
i went to a show in november of last year (it’s may right now) and ever since, i have tinnitus. i don’t recommend it.
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LLM function calls don't scale; code orchestration is simpler, more effective
TL;DR: Giving LLMs the full output of tool calls is costly and slow. Output schemas will enable us to get structured data, so we can let the LLM orchestrate ...
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Collaborative Text Editing Without CRDTs or OT
Matthew Weidner | May 21st, 2025 Home | RSS Feed Keywords: text editing, server reconciliation, Articulated
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The Era of the Business Idiot
Fair warning: this is the longest thing I've written on this newsletter. I do apologize. Soundtrack: EL-P - $4 Vic Listen to my podcast Better Offline. We have merch. Last week, Bloomberg profiled Microsoft CEO Satya Nadella, revealing that he's either a liar or a specific kind of
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Things that have a bigger impact than coding assistants
Here are 5 factors that make a bigger difference to software development outcomes than “A.I.” coding assistants, but teams don’t address because they’re “old news, gra…
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Satellites Spotting Depth
Benchmarks & Tips for Big Data, Hadoop, AWS, Google Cloud, PostgreSQL, Spark, Python & More...
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