Why the ROI of AI is hard to measure, and why I don't think AI will run away any time soon. AFAICS, the process of deriving value from AI output involves *two* logarithmic steps. www.linkedin.com/feed/update/...

Why the ROI of AI is hard to measure, and why I don't think AI will run away any time soon. AFAICS, the process of deriving value from AI output involves *two* logarithmic steps. Based on modellin...

Why the ROI of AI is hard to measure, and why I don't think AI will run away any time soon. AFAICS, the process of deriving value from AI output involves *two* logarithmic steps. Based on modelling my...

linkedin.com

Optimising your memory allocations in Java could make far more difference than your choice of Garbage Collector, and may even change which garbage collector is best. Chronicle FIX already persists each message; what if we use SLF4J/logback to write another copy blog.vanillajava.blog/2026/06/why-...

AI can be used as a trial developer of your software. If an AI can write effective code, test, and tune it, that a great start. In this exercise, I get an AI to write a low latency benchmark in Java for Chronicle FIX (closed source so not indexed) blog.vanillajava.blog/2026/06/test...

Testing Java Memory Management with Chronicle-FIX using AI

While I am sceptical of using AI for release code, it has plenty of uses that previously weren’t practical, such as determining how easy...

blog.vanillajava.blog

I am all in on AI writing 20K LOC a day. I use it for mock systems, quick prototypes, and sample use cases. It works well enough, but it's not worth reading, usually not worth adding as test cases, and certainly not worth using in production. www.linkedin.com/posts/peterl...

10,000 lines of bug-free code a day!! #coding #vibecoding #software #codex | Peter Lawrey

I am all in on AI writing 20K LOC a day, but it is disposable, bug-filled crap. I use it for mock systems, quick prototypes, and sample use cases. It works well enough, but it's not worth reading, usu...

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The problem isn't technical; inefficient use of AI is expensive. My team uses Claude and Codex nearly every day, and I have generated ~1M LOC this year. Yet AI accounts for ~1% of our costs, and I don't think spending much more would help. www.linkedin.com/posts/peterl...

The problem isn't technical, using AI inefficiently is expensive. My team uses Claude and Codex nearly every day, I have generated ~1M LOC this year. Yet AI is ~1% of our cost, and I don't thi...

The problem isn't technical, using AI inefficiently is expensive. My team uses Claude and Codex nearly every day, I have generated ~1M LOC this year. Yet AI is ~1% of our cost, and I don't think spend...

linkedin.com

The biggest benefit of AI is that it serves as a rapid-learning tool to broaden your knowledge. It can help close gaps in your knowledge up to average levels with relatively little effort www.linkedin.com/posts/peterl...

Why The Best Kids Are Rarely The Best Adults | Peter Lawrey

The biggest benefit of AI is that it serves as a rapid-learning tool to broaden your knowledge. It can help close gaps in your knowledge up to average levels with relatively little effort and, in doin...

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I don't just expect AI to fail regularly; if they don't, I make the problem harder. www.linkedin.com/feed/update/...

AI Limit Testing: Challenging Models to Their Limits | Peter Lawrey posted on the topic | LinkedIn

TL;DR I don't just expect AI to fail regularly; if they don't, I make the problem harder. These days, software development is more about problem framing and intent definition, as humans still need to...

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For those old enough to remember the Iraq/Afghanistan wars, with about 93 million people in them combined, they cost ~$8 trillion in today's money. Iran also has 93 million people, and the war there could cost the same over the next 20 years.

AI^2: writing scripts and plugins so that AI prompts are programmatically produced and monitored. Your CLI AI is running other AIs and monitoring those.

The widespread use of AI has led to expectations for best-of-breed solutions that far exceed productivity gains, meaning major tasks can take much longer. www.linkedin.com/feed/update/...

TLDR: The widespread use of AI has led to an increase in expectations for best-of-breed solutions well above the productivity gain, meaning major tasks can take much longer. I still find that AI… | P...

TLDR: The widespread use of AI has led to an increase in expectations for best-of-breed solutions well above the productivity gain, meaning major tasks can take much longer. I still find that AI isn'...

linkedin.com

Sureal moment: I told Codex the way /prompt worked wasn't right, and now it's looking through the ~/.nvm Codex code to figure out why

Yesterday, I was reminded that AI creates new classes of bugs. Gemini 3.0 Pro (preview) CLI kept “hallucinating” my config as code edits. Too much AI gap-filler kills determinism – we need Codex/Claude-style smart glue, not opaque agents. www.linkedin.com/feed/update/...

Tip for AI CLI: ask it to suggest topics to research to fix a problem, get a chat AI to do the research with web search, and paste the results into the CLI, save it to an adoc|md for future reference

Oddly specific rety time for Gemini CLI

to avoid an empty block complaint. while (methodReader.readOne()) { continue; }

A test that never failed doesn't add much value. Ask an AI to write a failing test, and it will write a broken test. The solution I have found is: 1. Ask it to find/fix a bug and write a test to exercise it 2. Keeping only that test, check it fails without a fix 3. Write the fix

"Much of the most valuable Gen AI usage will grow out of existing business applications, rather than be wholly new. These applications will draw on existing domain models and infrastructure, and be more robust and useful as a result." medium.com/@springrod/d...

Don’t Talk English to Your LLM

Just because LLMs are eloquent in natural language doesn’t mean that we should always communicate with them in it.

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I find AI is more useful as a simulated developer user of the software. It doesn't find bugs as often as it stumbles on usability issues.

The AI boom isn’t just about algorithms — it’s about money, power, and a race to build infrastructure on a scale we’ve never seen before youtu.be/NbL7yZCF-6Q?...

Running codex cli via ssh from my phone, works surprisingly well while doing house work and other tasks

Visiting Zegreb for some consulting

On 20 Sep 2025, the UK had its third mass shooting for the year, the highest number in a year since 2006. Also on 20 Sep 2025, the US had 3 mass shootings that day, which has the highest in one day since 18 Sep 2025. The US has 5x the population of the UK, not 365x.

The war no one talks about

It turns out that Reasoning LLM can also get distracted by cats. "Cats Confuse Reasoning LLM: Query Agnostic Adversarial Triggers for Reasoning Models" arxiv.org/abs/2503.01781

While Generative AI can increase the overall volume of documentation and code, in terms of curated and validated release content, the increase might only be +20%. The following represents the number of lines of ~6 months of work on similar projects, both before and after using AI.

Reporter: The president of Venezuela called the strike on the boat illegal Trump: What’s illegal is the fact that 300 million people died last year from drugs

Parwill was the name of an Australian food product from 1928 to 1935, originally branded as Vegemite, which was a failed attempt to compete with the popular British brand Marmite. The name was a pun on Marmite. uk.pcmag.com/ai/159686/el...

Elon Musk to Take on Microsoft With 'Macrohard'

The goal is to create hundreds of specialized coding and generative AI agents. 'It should be possible to simulate [Microsoft] entirely with AI,' Musk says.

uk.pcmag.com

Coding is a mystery story where you are the detective, perpetrator, and the victim

The minimum tarrif for goods mailed into the US will be $80 to $200 depending on the country. A $5 cup direct from China will have a $200 tarrif.