Chris Bull
@hellocbulll.bsky.social
Building and leading AI products for myself and others. CTO stuff. Advise climate tech cos. Electronic music DJ, producer and composer (https://douglaslove.bandcamp.com/)
Reposted by Chris Bull
At long last. This is great
Until now, if you lost or broke your phone, your Signal message history was *gone,* a real challenge for everyone whose most important conversations happen in Signal. So, with careful design and development, we’re rolling out opt-in secure backups.
signal.org/blog/introducing-secure-backups
signal.org/blog/introducing-secure-backups
Introducing Signal Secure Backups
In the past, if you broke or lost your phone, your Signal message history was gone. This has been a challenge for people whose most important conversations happen on Signal. Think family photos, sweet...
signal.org
September 8, 2025 at 4:39 PM
At long last. This is great
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All AI-powered code editors, maybe except Github Copilot.
August 11, 2025 at 2:28 PM
All AI-powered code editors, maybe except Github Copilot.
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Letter of the day (in the Times)
August 11, 2025 at 8:00 AM
Letter of the day (in the Times)
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July 27, 2025 at 5:33 PM
Reposted by Chris Bull
Reposted by Chris Bull
I built a new LLM plugin that can turn a PDF into an image-per-page for feeding into vision models, and in testing it found that GPT-4.1 mini hallucinates WILDLY if you feed it a blank white rectangle followed by a blank black rectangle https://simonwillison.net/2025/May/18/llm-pdf-to-images/
May 18, 2025 at 9:00 PM
I built a new LLM plugin that can turn a PDF into an image-per-page for feeding into vision models, and in testing it found that GPT-4.1 mini hallucinates WILDLY if you feed it a blank white rectangle followed by a blank black rectangle https://simonwillison.net/2025/May/18/llm-pdf-to-images/
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I heard this described as Dubai Final Boss…
April 22, 2025 at 10:04 PM
I heard this described as Dubai Final Boss…
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AGI is a story, not a technology nymag.com/intelligence...
April 10, 2025 at 1:17 PM
AGI is a story, not a technology nymag.com/intelligence...
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my hope is that AI can empower the Dumbest, Least talented slobs i know to replace everything i ever loved with One Million Years of Content
April 8, 2025 at 3:07 AM
my hope is that AI can empower the Dumbest, Least talented slobs i know to replace everything i ever loved with One Million Years of Content
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Guy behind me at this coffee shop just typed “had a dream my mom died what does it mean” into ChatGPT
March 26, 2025 at 12:53 AM
Guy behind me at this coffee shop just typed “had a dream my mom died what does it mean” into ChatGPT
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1.5 yrs ago, we set out to answer a seemingly simple question: what are we *actually* getting out of RL in fine-tuning? I'm thrilled to share a pearl we found on the deepest dive of my PhD: the value of RL in RLHF seems to come from *generation-verification gaps*. Get ready to 🤿:
March 4, 2025 at 8:59 PM
1.5 yrs ago, we set out to answer a seemingly simple question: what are we *actually* getting out of RL in fine-tuning? I'm thrilled to share a pearl we found on the deepest dive of my PhD: the value of RL in RLHF seems to come from *generation-verification gaps*. Get ready to 🤿:
Reposted by Chris Bull
I can't stop laughing at this man I'm sorry. This is the kind of shit the biggest loser in the world would say to their girlfriend about buying her flowers on Valentine's Day once, and he's doing so in an argument that started because he called her a bitch
March 1, 2025 at 2:49 PM
I can't stop laughing at this man I'm sorry. This is the kind of shit the biggest loser in the world would say to their girlfriend about buying her flowers on Valentine's Day once, and he's doing so in an argument that started because he called her a bitch
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An engineer once explained to me that an efficient system always has need available when a resource becomes free, and an effective system always has a resource available when a need arises. Mind was blown.
February 17, 2025 at 7:53 PM
An engineer once explained to me that an efficient system always has need available when a resource becomes free, and an effective system always has a resource available when a need arises. Mind was blown.
Reposted by Chris Bull
NEW: updated long-run gap in voting between young men and women in Germany:
Gender divide continues to widen, but contrary to what is often assumed, young men continue to vote roughly in line with the overall population, while young women have swung sharply left.
www.ft.com/content/29fd...
Gender divide continues to widen, but contrary to what is often assumed, young men continue to vote roughly in line with the overall population, while young women have swung sharply left.
www.ft.com/content/29fd...
February 24, 2025 at 9:16 AM
NEW: updated long-run gap in voting between young men and women in Germany:
Gender divide continues to widen, but contrary to what is often assumed, young men continue to vote roughly in line with the overall population, while young women have swung sharply left.
www.ft.com/content/29fd...
Gender divide continues to widen, but contrary to what is often assumed, young men continue to vote roughly in line with the overall population, while young women have swung sharply left.
www.ft.com/content/29fd...
Reposted by Chris Bull
This weekend I've decided to finally read Balaji Srinivasan's terrible fucking book, "The Network State."
I've put this off for as long as I possibly could. Here goes.
thenetworkstate.com/book/tns.pdf
I've put this off for as long as I possibly could. Here goes.
thenetworkstate.com/book/tns.pdf
thenetworkstate.com
February 8, 2025 at 3:54 PM
This weekend I've decided to finally read Balaji Srinivasan's terrible fucking book, "The Network State."
I've put this off for as long as I possibly could. Here goes.
thenetworkstate.com/book/tns.pdf
I've put this off for as long as I possibly could. Here goes.
thenetworkstate.com/book/tns.pdf
Reposted by Chris Bull
Gladiator II at IMAX last night was a perfect piece of escapism
November 26, 2024 at 1:30 PM
Gladiator II at IMAX last night was a perfect piece of escapism
Reposted by Chris Bull
Thinking I'd like to go to an AI conference in the heart of all the madness next year (SF). Anyone recommend good ones?
November 19, 2024 at 2:15 PM
Thinking I'd like to go to an AI conference in the heart of all the madness next year (SF). Anyone recommend good ones?
'twas 'Discovery' etc that drove me from that other site in the first place, but if I can defaul this to just who I follow them I'm game to give this whole posting lark another go 🙏
November 15, 2024 at 11:52 AM
'twas 'Discovery' etc that drove me from that other site in the first place, but if I can defaul this to just who I follow them I'm game to give this whole posting lark another go 🙏