HNHacker News
TopNewBestAskShowJobs

kiernanmcgowan

1,497 karma · joined October 30, 2015

SF

Data, Feedback loops, Emergent Behavior

hi@kiernan.io

@kiernanmcgowan

submissionscomments
kiernanmcgowan··on Nobel Prize in Physics 2026: Francis Halzen
Time for cheese curds at the Old Fashioned!
kiernanmcgowan··on Open-source interactive map for the Aug 12 total solar eclipse
I'm maybe thinking about finding a spot along one of the river walks. Will require more planning around finding the right angle but it should naturally allow for more space for people vs the bridges.

Found an app called SunSurveyor that lets you see the position of the sun in the sky at a specific time from either your location via AR or google street view. Its been enormously helpful in ruling out potential spots.

kiernanmcgowan··on Open-source interactive map for the Aug 12 total solar eclipse
Also on my way there - I’m curious how packed the city is going to be. I imagine the bridges are going to be absolutely packed
kiernanmcgowan··on We charge $10k a week to delete AI-generated code
"rm -rf ./" can't be that expensive, right?
kiernanmcgowan··on Steam Machine launches today
My guess are people who want to PC game but don't want to deal with building a PC themselves - there's a decent market of pre-built gaming PCs that this would be competitive with.

https://www.newegg.com/Gaming-Desktop-PC/SubCategory/ID-3742

kiernanmcgowan··on Decades of Effort Restore Steelhead and Salmon Passage on Alameda Creek
Such good news - for those looking for a relaxing hobby fly fishing is an excellent sport to get into. You spend all day standing in a river trying to out smart some fish and trout are exceptionally beautiful creatures up close.
kiernanmcgowan··on GitHub is investigating unauthorized access to their internal repositories
Mythos has broken containment
kiernanmcgowan··on Your favorite brands got worse on purpose
> Champion was acquired from HanesBrands in October 2024 for $1.2 billion...

I was wondering why these shirts went to hell. This was probably my favorite brand in the 2010s. Super durable and thick cotton shirts. I'd still be wearing them if I hadn't gained weight.

kiernanmcgowan··on Hegel, a universal property-based testing protocol and family of PBT libraries
Hypothesis: customer says something is bugged

Antithesis: the tests pass with 100% coverage

Synthesis: the bug is a feature

kiernanmcgowan··on The house is a work of art: Frank Lloyd Wright
This is, by far, one of the weirdest places I've ever visited. Tonal whiplash is an understatement.
kiernanmcgowan··on Artemis II Launch Day Updates
"We have a beautiful moon rise, we're heading right at it" got me a little choked up. Here's to the ever unfolding adventure of mankind.
kiernanmcgowan··on Productivity gains from AI coding assistants haven’t budged past 10% – survey
My biggest road blocks as an engineer has almost never been the authorship of code but everything else around it.

* Getting code reviewed

* Making sure its actually solving the problem

* Communicating to the rest of the team whats happening

* Getting tests to pass

* Getting it deployed

* Verifying that the fix is implemented in production

* Starting it all over when there is a misunderstanding

Slinging more code faster is great and getting unit testing more-or-less for free is awesome but the separation between a good and great engineer is one of communication and management.

AI is causing us to regress to thinking that code velocity is a good metric to use when comparing engineers.

kiernanmcgowan··on Using go fix to modernize Go code
Its tooling like this that really makes golang an excellent language to work with. I had missed that rangeint addition to the language but with go fix I'll just get that improvement for free!

Real kudos to the golang team.

kiernanmcgowan··on Anthropic raises $30B in Series G funding at $380B post-money valuation
Slight counter point - claude code is basically the only developer tool that ever been happy to pay money for. Getting the entire software industry to give you $200/mo/person is quite the market.
kiernanmcgowan··on Thatcher Effect – Optical Illusion and Explanation
Do you think Margaret Thatcher had Girl Power?

https://www.youtube.com/watch?v=0G6RF5ChKYQ

kiernanmcgowan··on SpaceX in Merger Talks with xAI
MechaHitler now has space launch capabilities
kiernanmcgowan··on Doctors in Brazil using tilapia fish skin to treat burn victims (2017)
I've read Dune - I know exactly where this is going. Please do not apply sand trout directly to you skin unless you are ready to control the spice.
kiernanmcgowan··on Ask HN: Share your personal website
Out of date and worth an update

https://kiernan.io/

kiernanmcgowan··on The insecure evangelism of LLM maximalists
LLMs are really great at copy/pasting answers from stack overflow and fitting them to work in a given system. If your work is outside what is answerable on stack overflow you're going to end up fighting the results constantly.

Front end pages like a user settings page? Done. One shottable.

Nuanced data migration problems specific to your stack? You're going to be yelling at the agent.

> LLM evangelists - are you willing to admit that you just might not be that good at programming computers? Maybe you once were. Maybe you never were.

A bit harsh considering that many of us used knowledge bases like SO for so long to figure out new problems that we were confronting.

kiernanmcgowan··on Toll roads are spreading in America
It’s also a direct usage tax to support road maintenance. Heavier users of the road ways end up contributing more to the maintenance of the public good.

We had a proxy for that via gasoline taxes but with EV becoming more common we need to find a replacement for that revenue.

kiernanmcgowan··on How we automated federal retirements
Because 18F was from the Obama administration
kiernanmcgowan··on Ask HN: What did you read in 2025?
Gravity's Rainbow - still chewing on it all
kiernanmcgowan··on AI will kill all the lawyers
Its a funny take because this reddit thread seems to suggest the opposite. Pro se litigants (people representing themselves) are using LLMs to create more lawsuits resulting in more work for lawyers.

https://www.reddit.com/r/Lawyertalk/comments/1n9cwfv/pro_se_...

kiernanmcgowan··on Delivery robots take over Chicago sidewalks
I’m working on a burrito artillery system. It’s the ideal form factor for high velocity chorizo but the delivery tends to make a mess.
kiernanmcgowan··on FBI Agents Visit Anti-ICE Protester: "Your name was brought up."
You may not care about politics, but politics cares about you.
kiernanmcgowan··on Starcloud
Whats going to be delivered first - Tesla FSD or a space based data center?
kiernanmcgowan··on Lessons from 863 episodes of This American Life
Give it a listen! It’s a real gem of a show
kiernanmcgowan··on Lessons from 863 episodes of This American Life
This American Life really does live up to its name - its a real slice of American culture / society on any given week. I imagine its going to be a wellspring of understanding our time for future anthropologists and historians.
kiernanmcgowan··on America’s incarceration rate is in decline
> After peaking at just more than 1.6 million Americans in 2009

> But a prison is a portrait of what happened five, 10, and 20 years ago.

Is this just a result of the dropping crime rates since the mid 90s, but on a 20ish year lag?

kiernanmcgowan··on Tesla Robotaxi Videos Show Speeding, Driving into Wrong Lane
The market can stay irrational longer than Tesla can stay solvent.
Page 1 of 7Next →