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aantix

5,466 karma · joined April 11, 2007

My name is Jim Jones. I consult as a software engineer for startups in the Bay Area. I'm a two-time speaker at RailsConf. Love spending time with my family and writing software.

https://www.linkedin.com/in/jimjones2

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aantix··on Learning to Reason with LLMs
The number of tech job postings has tanked - which loosely correlates with the rise of AI.

https://x.com/catalinmpit/status/1831768926746734984

aantix··on The Laying of the American Trans-Pacific Cable (1903)
It's interesting - with such large defense funding, why did it take Starlink, a private company, to establish this network of satellites?

Why wasn't it done by the American military - surely this potential has been known for decades now.

They have the budget for it.

aantix··on Marketing to Engineers (2001)
Perfect. I set up a time for next week. Looking forward to it!
aantix··on Marketing to Engineers (2001)
Ever thought about starting your own company?

I'm a software engineer of 24 years. Maybe there's some synergy here.

Feel free to reach out to me on LinkedIn (in my profile).

aantix··on What's Going on in Machine Learning? Some Minimal Models
Agree - the whole "he's great" vs "he's evil and a con" just gets old.

Everyone is a complex mixture of both.

My dad loved reading and sharing technical subjects with me and is probably part of the reason why I enjoy a good career today.

He also cheated on my mom for 30 years for which we didn't discover until the last 3 years of his life. We didn't have much money growing up. He probably took her out to dinner with money we didn't have.

It's perfectly normal to both love and hate parts of someone, but not reject them as a whole.

aantix··on Transformers for Ruby
Any plans for implementing coreference resolution, similar to the FastCoref?
aantix··on Fine-tuning now available for GPT-4o
Github's Copilot Workspace or Cursor's new composer beta feature. That's where you'll be in 6 months.

Multi-file code suggestions with an intimate understanding of the entire code base.

https://x.com/aantix/status/1819794837375263228

P.S. Or Plandex, https://plandex.ai/

aantix··on Waymo to begin testing on San Francisco freeways this week
The defined ODD is essentially cherry-picking the routes.
aantix··on Waymo to begin testing on San Francisco freeways this week
They're not remotely comparable problem sets.

Tesla's generalized driving algorithm vs Waymo's cherry-picked routes and ideal weather.

Tesla is winning. And the gap is getting wider.

aantix··on Waymo to begin testing on San Francisco freeways this week
12.5.1.3 is pretty incredible. Their innovation in this space is accelerating rapidly.

I encourage you to watch some of the videos on Twitter.

It's here. It's now.

aantix··on Waymo to begin testing on San Francisco freeways this week
Have you seen FSD 12.5.1.3?
aantix··on Ask HN: Should we bring software dev in-house?
If you move it in-house, I would recommend changing your application process to include a video portion. Unless they can point to a long track record of open source.

All engineers are utilizing GPT to write their resumes/cover letters.

The written word and keyword references are no longer a signal of ability.

Give them a couple of questions to answer on video.

Record the time when the questions were displayed vs when their video cover letter/resume was submitted to ensure they're organically answering the questions.

Otherwise, be prepared to sift through literally 1,000+ applicants.

Hiring has slowed in the U.S. I wonder if in part it's because everyone now can submit a very qualified resume and it's become increasingly difficult to differentiate good vs bad candidates? Especially given the increase in applicants.

aantix··on Neon: A serverless open-source alternative to AWS Aurora Postgres
neon.tech's offering looks good - the $69 offering.

Any reviews?

aantix··on AI agents but they're working in big tech
Plandex and Github's Copilot Workspace are very similar. You could draw inspiration from each other.

I tweeted about Copilot Workspace the other day.

https://twitter.com/aantix/status/1819794837375263228

aantix··on AI agents but they're working in big tech
This looked very promising.

Although, it's now prompting me to make an account when I issue `plandex new`?

None of the video demos show this requirement.

I think the demos should show this requirement. Or the Quickstart docs should directly link to the self-hosted instructions.

"? Hey there! It looks like this is your first time using Plandex on this computer.

What would you like to do?

> Start an anonymous trial on Plandex Cloud (no email required)

  Sign in, accept an invite, or create an account"****
aantix··on AI agents but they're working in big tech
Is there an agent framework that lives up to the hype?

Where you specify a top-level objective, it plans out those objectives, it selects a completion metric so that it knows when to finish, and iterates/reiterates over the output until completion?

aantix··on The upstream cause of the youth mental health crisis is the loss of community
There's now an intolerance to letting kids play freely.

And if you do let your kids play freely, and something happens - they get hurt, they break something, they're being loud, there's the attitude from others of "why aren't you watching your f*ing kid?".

aantix··on Mastering Ruby Code Navigation: Ruby LSP Enhancements in the First Half of 2024
Rubymine is the only editor I’ve ever used that gets the code navigation consistently right without any config. You can even navigate to dependency implementations. It’s invaluable with understanding really large code bases.

Excited to try this to see if it measures up.

aantix··on Taking my diabetes treatment into my own hands
When I was self diagnosing, my Google queries were simplistic.

E.g.

resistant hypertension many medications

Which led me to a couple of research articles about pheochromocytomas and a Washington Post article about someone with high blood pressure on a "bucketload of medications".

e.g. https://www.washingtonpost.com/health/2022/04/23/high-blood-...

If the LLM can provide a sample Google-like analysis, data points that my 7 specialty doctors missed, that's an improvement.

aantix··on Taking my diabetes treatment into my own hands
Agree - most of the advice is WebMD level.

Anything outside the check list leaves them scratching their head. They’re terrible debuggers.

I had early high blood pressure since high school. Four blood pressure medications, one being a diuretic. Signs of edema.

It’s not like my condition required any complicated diagnostics. I met the checklist.

5 cardiologists 2 nephrologists in my lifetime. Nothing but more pills for treatment. Over two decades.

I had to be the one to research and then ask to see an endocrinologist because I thought it might be hyperaldosteronism. They were dismissive when I asked but reluctantly made the referral.

Yes, it was unilateral hyperaldosteronism. Had my left adrenal gland removed because of it.

And now my BP is much more stable. I still take a couple of BP drugs, but in smaller doses. And my BP is much more normal and stable.

No more wild, 3am ER visits where my BP was 200/120. And I lost about 15 lbs of water weight.

If have long lived resistant hypertension, please ask to see an endocrinologist to get screened for hyperaldosteronism.

aantix··on How fast can a human possibly run 100 meters?
There's a famous trainer, Ryan Flaherty. He gets guys ready for the NFL combine.

He utilizes the hex-bar deadlift.

He has his football athletes complete the concentric phase (picking up from the ground) as fast as possible.

They just drop the weight when they reach full extension at the top.

He claims that the eccentric phase (lowering) is when all of the micro-muscle tears occur. These tears cause muscle growth.

By dropping the hex-bar deadlift weight at the top, instead of lowering, you get most of the strength gain, without the muscle size growth.

This is an effort to increase leg strength (for speed) without adding additional body weight.

Getting faster by getting stronger but staying lighter.

aantix··on The workers have spoken: They're staying home
Disagree.

With savings comes extra cash.

And extra cash can only sit on the sidelines for so long.

Until company’s are lured once again in to making bigger, larger, scalable bets.

You need engineers to explore new hypotheses, to drive growth, to explore these new possible markets.

Greed always returns. Idle money, stagnant growth helps no one.

You don’t scale a company with savings. You scale up by spending.

aantix··on The workers have spoken: They're staying home
Why the move?
aantix··on Mining JIT traces for missing optimizations with Z3
Is the scope a whole program or a specific algorithm?
aantix··on Mining JIT traces for missing optimizations with Z3
Depends on the comprehensiveness of the test.
aantix··on Mining JIT traces for missing optimizations with Z3
A valid accompanying test would ensure this?

You’d be extracting optimization candidates by running the test suite.

You re-run the test suite after changes to ensure they still pass.

aantix··on Mining JIT traces for missing optimizations with Z3
I think I envisioned traces being extracted from a series of open source projects and their automated test suites.

Run the test suite, identify optimizations. One by one, make the the optimization change to the implementation as suggested by the LLM.

Instrument the changed methods on the second test run and see if runtime performance has changed. Verify that the test still passes.

aantix··on Mining JIT traces for missing optimizations with Z3
Compile enough traces with the accompanying optimizations and you have solid training data for an LLM that can suggest optimizations based on JIT traces.
aantix··on Visual programming should start in the debugger
I developed Call Stacking as a visual debugger.

It captures everything for a given request - each method call, params/argument/return values, class name/method/line of execution.

You can visibly see which method called which, as each method call is nested relative to its parent callee, in a single consolidated timeline.

https://callstacking.com/

aantix··on Panic at the Job Market
Will Trump reverse these changes?

Will he lower interest rates?

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