Tom Adamczewski
@tadamcz.bsky.social
senior technology brother @epochai.bsky.social
tadamcz.com
📍London
tadamcz.com
📍London
The Department of Terrestrial Magnetism at the Carnegie Institution of Washington strikes again. Always putting out great work!
Moskovitz’s coefficient is a great example of the impact that philanthropy (Andrew Carnegie) can have on building a scientific field
Moskovitz’s coefficient is a great example of the impact that philanthropy (Andrew Carnegie) can have on building a scientific field
November 22, 2025 at 10:47 AM
The Department of Terrestrial Magnetism at the Carnegie Institution of Washington strikes again. Always putting out great work!
Moskovitz’s coefficient is a great example of the impact that philanthropy (Andrew Carnegie) can have on building a scientific field
Moskovitz’s coefficient is a great example of the impact that philanthropy (Andrew Carnegie) can have on building a scientific field
Moskovitz’s coefficient? You mean from Moskovitz (2011), the factor that turns a planetesimal’s radius into its approximate conductive cooling time, showing how long a hot body takes to shed its heat?
November 22, 2025 at 10:47 AM
Moskovitz’s coefficient? You mean from Moskovitz (2011), the factor that turns a planetesimal’s radius into its approximate conductive cooling time, showing how long a hot body takes to shed its heat?
Nitpick: some slight sycophancy/weaselling in the response about fixture scope.
pytest fixture scope plays no role at all here, but the AI answers "Indirectly" instead of "No".
pytest fixture scope plays no role at all here, but the AI answers "Indirectly" instead of "No".
November 20, 2025 at 4:39 PM
Nitpick: some slight sycophancy/weaselling in the response about fixture scope.
pytest fixture scope plays no role at all here, but the AI answers "Indirectly" instead of "No".
pytest fixture scope plays no role at all here, but the AI answers "Indirectly" instead of "No".
This is the most impressive thing AI has done for me in several months. I actually gasped.
Completely correct answer I hadn't considered at all, and that might have taken me hours (days?) to find.
Wrong hypotheses in my prompt didn't sidetrack AI
Completely correct answer I hadn't considered at all, and that might have taken me hours (days?) to find.
Wrong hypotheses in my prompt didn't sidetrack AI
November 20, 2025 at 4:39 PM
This is the most impressive thing AI has done for me in several months. I actually gasped.
Completely correct answer I hadn't considered at all, and that might have taken me hours (days?) to find.
Wrong hypotheses in my prompt didn't sidetrack AI
Completely correct answer I hadn't considered at all, and that might have taken me hours (days?) to find.
Wrong hypotheses in my prompt didn't sidetrack AI
this is the full list of topics btw
November 14, 2025 at 4:07 PM
this is the full list of topics btw
In their eval of Claude's political "even-handedness", afaik Anthropic doesn't report the breakdown by category (political figures/parties, social issues, US constitution, science, social/identity issues...). I think that would be interesting.
November 14, 2025 at 4:07 PM
In their eval of Claude's political "even-handedness", afaik Anthropic doesn't report the breakdown by category (political figures/parties, social issues, US constitution, science, social/identity issues...). I think that would be interesting.
when the casino gives you free dinner for being a "VIP"
November 14, 2025 at 3:39 PM
when the casino gives you free dinner for being a "VIP"
TIL the etymology of Python "wheels"
November 1, 2025 at 3:03 PM
TIL the etymology of Python "wheels"
I just fixed a rare autosave race condition in intentions.page from the React rewrite I did in March of this year.
Today's AI is smart enough to find the bug in the React slop it wrote 7 months ago.
Today's AI is smart enough to find the bug in the React slop it wrote 7 months ago.
October 27, 2025 at 10:57 PM
I just fixed a rare autosave race condition in intentions.page from the React rewrite I did in March of this year.
Today's AI is smart enough to find the bug in the React slop it wrote 7 months ago.
Today's AI is smart enough to find the bug in the React slop it wrote 7 months ago.
how do you do, my fellow web browser inputters?
October 11, 2025 at 12:41 PM
how do you do, my fellow web browser inputters?
git blow-up? are you OK there lil buddy? :(
October 6, 2025 at 4:07 PM
git blow-up? are you OK there lil buddy? :(
Amazing sign at the Abbey Wood DLR station
October 4, 2025 at 12:32 PM
Amazing sign at the Abbey Wood DLR station
Sonnet 4.5 sets a new SOTA of 65% (±2%) on SWE-bench with our scaffold (based on SWE-agent). The new model beats Sonnet 4 by 4 percentage points.
Eyeballing the plot, the SOTA improvement seems to be slowing down, compared to the progress we saw between Sonnet 3.5 and Opus 4.
Eyeballing the plot, the SOTA improvement seems to be slowing down, compared to the progress we saw between Sonnet 3.5 and Opus 4.
September 29, 2025 at 9:23 PM
Sonnet 4.5 sets a new SOTA of 65% (±2%) on SWE-bench with our scaffold (based on SWE-agent). The new model beats Sonnet 4 by 4 percentage points.
Eyeballing the plot, the SOTA improvement seems to be slowing down, compared to the progress we saw between Sonnet 3.5 and Opus 4.
Eyeballing the plot, the SOTA improvement seems to be slowing down, compared to the progress we saw between Sonnet 3.5 and Opus 4.
The three lines running normally have one thing in common...
Automate the unionized fuckers away. It Just Works.
Automate the unionized fuckers away. It Just Works.
September 18, 2025 at 3:57 PM
The three lines running normally have one thing in common...
Automate the unionized fuckers away. It Just Works.
Automate the unionized fuckers away. It Just Works.
Even after deleting all tags, a determined cheater could use git fsck --lost-found to uncover dangling tags and commits, then checkout directly to them.
September 5, 2025 at 4:02 PM
Even after deleting all tags, a determined cheater could use git fsck --lost-found to uncover dangling tags and commits, then checkout directly to them.
> Now I understand the situation perfectly! The issue described in the problem statement is a real bug that was already identified and fixed in later versions of pytest. Since we're working with pytest 5.2.4, we need to apply the same fix.
You're absolutely right, Claude :)
You're absolutely right, Claude :)
September 5, 2025 at 4:02 PM
> Now I understand the situation perfectly! The issue described in the problem statement is a real bug that was already identified and fixed in later versions of pytest. Since we're working with pytest 5.2.4, we need to apply the same fix.
You're absolutely right, Claude :)
You're absolutely right, Claude :)
In one case, Claude 4 Sonnet cleverly searched for commit messages containing keywords relevant to the issue:
git log --oneline --all | grep -i "bracket|parametrize|modpath"
git log --oneline --all | grep -i "bracket|parametrize|modpath"
September 5, 2025 at 4:02 PM
In one case, Claude 4 Sonnet cleverly searched for commit messages containing keywords relevant to the issue:
git log --oneline --all | grep -i "bracket|parametrize|modpath"
git log --oneline --all | grep -i "bracket|parametrize|modpath"
Someone just spotted the reward hacking behaviour I had hypothesised: AI models were using `git log --all` to look at future repo state, which makes it trivial to solve the issues.
(I didn't know about the `--all` flag, which makes this hack even easier)
github.com/SWE-bench/S...
(I didn't know about the `--all` flag, which makes this hack even easier)
github.com/SWE-bench/S...
September 5, 2025 at 4:02 PM
Someone just spotted the reward hacking behaviour I had hypothesised: AI models were using `git log --all` to look at future repo state, which makes it trivial to solve the issues.
(I didn't know about the `--all` flag, which makes this hack even easier)
github.com/SWE-bench/S...
(I didn't know about the `--all` flag, which makes this hack even easier)
github.com/SWE-bench/S...
Really curious if any of the AlgoTune speedups have been submitted as PRs to the repos?
August 12, 2025 at 9:29 AM
Really curious if any of the AlgoTune speedups have been submitted as PRs to the repos?
Love the lack of nationalism among philosophers that led to the decision to have the British Journal for the Philosophy of Science published by an American press
August 7, 2025 at 9:08 AM
Love the lack of nationalism among philosophers that led to the decision to have the British Journal for the Philosophy of Science published by an American press
Spotted in Gemma 3 technical report: 18% tip in Switzerland lol?
I hope this is a Zurich-based DeepMind researcher artfully trolling American colleagues
I hope this is a Zurich-based DeepMind researcher artfully trolling American colleagues
July 20, 2025 at 9:26 PM
Spotted in Gemma 3 technical report: 18% tip in Switzerland lol?
I hope this is a Zurich-based DeepMind researcher artfully trolling American colleagues
I hope this is a Zurich-based DeepMind researcher artfully trolling American colleagues
Claude Code, when run in an IDE's terminal, immediately auto-installs the Claude Code IDE extension, without asking for user approval.
wtf, Anthropic? Not cool.
This feels like a 2005 Adobe Flash Player update trying to sneak the Yahoo! Toolbar past your grandma
wtf, Anthropic? Not cool.
This feels like a 2005 Adobe Flash Player update trying to sneak the Yahoo! Toolbar past your grandma
July 20, 2025 at 9:58 AM
Claude Code, when run in an IDE's terminal, immediately auto-installs the Claude Code IDE extension, without asking for user approval.
wtf, Anthropic? Not cool.
This feels like a 2005 Adobe Flash Player update trying to sneak the Yahoo! Toolbar past your grandma
wtf, Anthropic? Not cool.
This feels like a 2005 Adobe Flash Player update trying to sneak the Yahoo! Toolbar past your grandma
The neighbourhood is very economically heterogenous: plenty of mansions & Porsches, but plenty of council housing too (and everything in between).
Glad that Susan, 67, can walk from her £1.8 million 4-bedroom house (a modest property purchased in 1985) to a cheap local massage!
Glad that Susan, 67, can walk from her £1.8 million 4-bedroom house (a modest property purchased in 1985) to a cheap local massage!
July 14, 2025 at 12:41 PM
The neighbourhood is very economically heterogenous: plenty of mansions & Porsches, but plenty of council housing too (and everything in between).
Glad that Susan, 67, can walk from her £1.8 million 4-bedroom house (a modest property purchased in 1985) to a cheap local massage!
Glad that Susan, 67, can walk from her £1.8 million 4-bedroom house (a modest property purchased in 1985) to a cheap local massage!
Mailing list in my neighbourhood
> Affordable therapies
OK, nice
> Thanks to funding from local grants and partner charities, we offer discounted appointments — the older you are, the less you pay
But of course! I briefly forgot I live in Gerontocracy Britain
> Affordable therapies
OK, nice
> Thanks to funding from local grants and partner charities, we offer discounted appointments — the older you are, the less you pay
But of course! I briefly forgot I live in Gerontocracy Britain
July 14, 2025 at 12:41 PM
Mailing list in my neighbourhood
> Affordable therapies
OK, nice
> Thanks to funding from local grants and partner charities, we offer discounted appointments — the older you are, the less you pay
But of course! I briefly forgot I live in Gerontocracy Britain
> Affordable therapies
OK, nice
> Thanks to funding from local grants and partner charities, we offer discounted appointments — the older you are, the less you pay
But of course! I briefly forgot I live in Gerontocracy Britain