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ca_tech

106 karma · joined April 13, 2023

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ca_tech··on Ask HN: Secure wrapper for coding agents?
If you are running MacOS, I would recommend Agent Safehouse. Well maintained and is built on existing sandbox-exec so you are not locked in and can always build your own rules independent of the CLI tool.

https://github.com/eugene1g/agent-safehouse/ https://agent-safehouse.dev/

Originally posted on HN https://news.ycombinator.com/item?id=47301085

ca_tech··on Agentic Engineering Patterns
Agreed, the programmer is not going away. However, I expect the role is going to change dramatically and the SDLC is going to have to adapt. The programmer used to be the non-deterministic function creating the deterministic code. Along with that were multiple levels of testing from unit to acceptance in order to come to some close alignment with what the end-user actually intended as their project goals. Now the programmer is using the probabilistic AI to generate definitive tests so that it can then non-deterministically create deterministic code to pass those tests. All to meet the indefinite project goals defined by the end-user. Or is there going to be another change in role where the project manager is the one using the AI to write the tests since they have a closer relationship to the customer and the programmer is the one responsible for wrangling the code to validate against those tests.
ca_tech··on Why software stocks are getting pummelled
This exactly. How many small businesses were running some sort of Access database built by someone who knew just enough to meet their business process needs? "Brenda always orders these parts on Tuesday so make sure there is a Tuesday ordering table." Eventually some SaaS solution came in and they evolved their business process because of the proposed benefits. I expect we are going to see a resurgence of good enough software created for the real world hodgepodge of business practices. Not a bad thing in the short term as it will creating adequate efficiency, but long term we are going to reap the technical debt. My prediction is that the next SaaS evolution is going to be platforms for these random solutions. Just as Salesforce captured CMS market, someone is going to capture the AI agent market where users can write and host their LOB code agnostic to the rest of their infrastructure stack and 'slightly' reduce that technical debt.
ca_tech··on Anti-aging injection regrows knee cartilage and prevents arthritis
This is why I think trail running is so valuable. You must be aware of your changing environment and how to adjust your body's movement to accommodate. You are exercising your mind to calculate your current momentum, intended placement of your next step, and it's potential impact to the rest of your body. You are running your own mental physics simulation as you work the trail, nothing like running on regular roads.
ca_tech··on I hate screenshots of text
It gave me a "living in the future" feeling the day someone sent me a picture of a phone number through imessage. Barely thinking, I pressed on the phone number in the image and I was prompted to call it. It was like technology and primitive intuition teamed up to create that moment.
ca_tech··on Neural audio codecs: how to get audio into LLMs
There is data but nowhere near the amount of written language that is fairly normalized and without the need to account for additional features such as language, dialect, intonation, facial expression, hand gestures. Speech to text is used as the translation layer as it throws many of those other features away and contextualizes it into a set of tokens that are much more efficient to map between languages.
ca_tech··on Line scan camera image processing for train photography
The reason I like line scan images is because it breaks our mental model of images. We are not looking at the image of a train. We are looking at a time series graph of what occupied a very small defined area in space.
ca_tech··on Using Wave Function Collapse to solve puzzle map generation at scale
The first definition of this type of procedural generation algorithm was called Model Synthesis by Paul Merrell [1] which built upon texture synthesis. You can even read Merrell's later comparison of the two algorithms [2].

[1] https://paulmerrell.org//thesis.pdf [2] https://paulmerrell.org/wp-content/uploads/2021/07/compariso...

ca_tech··on All federal agencies ordered to terminate remote work–ideally within 30 days
The civilian government agencies spent 248B on contract services in 2023 [1]. Not all of that was professional services, but I expect that we will see an increase in that number as more services are contracted out and a decrease in direct government workforce; a government contractor can still work remotely.

[1] https://files.gao.gov/multimedia/Federal_Government_Contract...

ca_tech··on Stargate Project: SoftBank, OpenAI, Oracle, MGX to build data centers
I am not qualified to make any assumptions but I do wonder if a massive investment into computing infrastructure serves national security purposes beyond AI. Like building subway stations that also happen to serve as bomb shelters.

Are there computing and cryptography problems that the infrastructure could be (publicly or quietly) reallocated to address if the United States found itself in a conflict? Any cryptographers here have a thought on whether hundreds of thousands of GPUs turned on a single cryptographic key would yield any value?

ca_tech··on Man suffers chemical burn that lasted months after squeezing limes
And with that we are back to limes. I love when we find cyclical comments
ca_tech··on Microsoft Word and Excel AI data scraping switched to opt-in by default
Agreed. This was raised within our corp the other week and we read through the privacy and security documentation as it relates to Connected Experiences. Microsoft has outlined specifically what Connected Experiences covers.[1] [2] You could argue that predictive text is a product of machine learning but there is no clause allowing for training any generalized large language models using this data. The confusion may have arisen, if they read an article about CoPilot. If the user had a Microsoft Copilot 365 license, then the data would be used as grounding for their personal interaction with CoPilot. But still not used to train any foundational LLMs. However, even this data is still managed in compliance with Microsoft's data security and privacy agreements.

[1] https://learn.microsoft.com/en-us/microsoft-365-apps/privacy...

[2] https://learn.microsoft.com/en-us/microsoft-365-apps/privacy...

ca_tech··on Genetic repair via CRISPR can inadvertently introduce other defects
The article covers this and I think the title is a bit too general. It is a byproduct of how CRISPR works as it targets a specific sequence. In this case the sequence is also present in areas that were non-targeted. Essentially, the sequence was not unique so the process impacted other areas in unintended ways.
ca_tech··on Show HN: Steiner – An open-source reasoning model inspired by OpenAI o1
You can now run any huggingface model using the following command

ollama run hf.co/{username}/{repository}

Example: ollama run hf.co/peakji/steiner-32b-preview-gguf:Q4_K_M

Source: https://huggingface.co/docs/hub/en/ollama

ca_tech··on Why the U.S. can't build icebreaking ships
It is a case of economic security. US National Security Advisor Daleep Singh spoke about this on the Odd Lots podcast a month ago. The goal is an integrated supply chain across all three countries, and an end result of marketing the ice breaker capacity to other allies.

https://www.listennotes.com/podcasts/odd-lots/how-the-white-...

Transcript Notes at 00:17:51

ca_tech··on Large Enough
Its like showing someone a color and asking how many letters it has. 4... 3? blau, blue, azul, blu The color holds the meaning and the words all map back.

In the model the individual letters hold little meaning. Words are composed of letters but simply because we need some sort of organized structure for communication that helps represents meaning and intent. Just like our color blue/blau/azul/blu.

Not faulting them for asking the question but I agree that the results do not undermine the capability of the technology. In fact it just helps highlight the constraints and need for education.

ca_tech··on AI models that cost $1B to train are underway, $100B models coming
I agree and do not think any company would make that investment directly. Nvidia selling to Microsoft renting to OpenAI, I'm sure you could make that add up to $100B on paper. In the long run the economics are likely much more complicated and consist of "agreements worth $x".
ca_tech··on Microsoft removes documentation for switching to a local account in Windows 11
Your point is interesting because I see this across the home hardware industry. Cheap electronics were subsidized by data collection and I suppose that market was lucrative until it wasn't. It happened behind the scenes, we knew it was going on, but it was abstracted away enough that we did not think about it. Now what is happening is that the hardware providers are getting into the marketing game directly. Personally in the past year I've given up on two pieces of hardware Alexa and Roku because they have morphed into ad machines. The market is open for privacy, convenience, and quality. Unfortunately, Apple seems to be the only major player in that space right now and we are paying their premium.
ca_tech··on Is Microsoft trying to commit suicide?
The realized value of LLMs is going to be output from a data to AI pipeline. From raw data to actions or insights. This is Microsoft's play to control the entire process. They are attempting to abstract away all the "tooling" needed to manage and process data. It falls down because there is no discretion left to the consumer. Objectively, the computer is already processing all the data you are interacting with. Subjectively it is assumed its ephemeral. Computer forensics proves this wrong. So I think to refine my opening statement, the realized value of LLMs is going to be the output from a "curated" data to AI pipeline. Which Microsoft is not providing with this solution.
ca_tech··on The Nascar Camera Tech Behind a Historic 0.001s Photo Finish
Another interesting takeaway is that because you are taking a single line capture the pixel distance equates to time not to distance like a normal image.

What that means is that if you pick two points on the car, you can measure that distance in pixels and multiply by the frequency to get change in time. Divide the actual physical distance of those two points by that result and you know how fast the car was traveling.

ca_tech··on Venture Capitalists Are Using Podcasts to Lure in Founders
I can say that Acquired at least has done some of the most interesting storytelling on the founding of companies. It's like taking 5 different books on the same topic and abridging the best parts together with some commentary sprinkled in.

If it is simply a platform for them, I'm okay with it because of the quality of content.

ca_tech··on A 2-Axis, Multihead Light Positioner
Wonder if there was consideration given to mechanically moving mirrors to facilitate the light positioning rather than moving the light source itself. It may lend to modularity as well if you need to switch out light sources (LED to Laser) and could allow for more complex configurations like notch filtering to remove unwanted reflective wavelengths. My first guess is it may have been cost as mirrors and filters are expensive.
ca_tech··on A generalist AI agent for 3D virtual environments
There is a delicate balance though. The draw of the RPG is that you play a character who usually has an outsized impact on the world in comparison to most everyone else. If we expect the NPCs to operate as independent entities, how do we manage their ambition so that they don't individually, or in aggregate, impact the world more than you? Without that, your character becomes another cog in the machine; it's their world and you are simply living in it... Which I could see having a certain appeal and may be just another genre.
ca_tech··on High Interest Savings Leaderboard
For a detailed report on the mechanics behind the BOXX ETF, Bloomberg just published this article: https://archive.is/8kq0G It is not a perfect solution for everyone. You do need to take into account your income tax rate and your capital gains tax rate.
ca_tech··on The Xylophone Maze: Screen-free coding for children
I wish I could find the source, but I'll relay it less eloquently. Children have a remarkable ability to ask for things they know they can't have. Their innocence gives them the audacity to ask for the impossible.

This always stuck with me. I sometimes catch myself when I self-curate questions to eliminate what I "know" will be impossible.

It also has led me to sometimes just say "yes" when I get those questions, just to impart a bit of expanded possibility into their life.

ca_tech··on Interviewing my mother, a mainframe COBOL programmer (2016)
I would highly encourage anyone who has even thought about doing this; do it. If you are thinking about how to get started, I recommend the StoryCorp app. It is easy to use they have a bunch of prebuilt questions or you can create your own. You record directly to your phone but if you are inclined, you can upload your interview to the Library of Congress. https://storycorps.org/participate/storycorps-app/
ca_tech··on XTTS voice cloning with only a seconds of audio
With Coqui.ai shutting down it's studio and API it looks like they are reinvesting their efforts into their XTTS models and framework. A recent update to their GitHub also has a no-code gradio ui to facilitate fine-tuning and inferencing locally. https://github.com/coqui-ai/TTS/releases/tag/v0.21.3
ca_tech··on Argentina's New President Wants to Adopt the Dollar as the National Currency
Milei voiced opposition to BRICS so I don't think this has any effect on that.

Bloomberg article covering Argentina's dollarization when it was first proposed by Milei which has some better info on what that means for Argentina https://archive.is/tef4H IMF paper linked at the bottom of that article is a good read on what dollarization actually means for an economy outside of a political agenda.

ca_tech··on Nvidia puts 30 years of high value knowhow in a 13B LLM
They do mention that their expectation is that the 70B model will provide even better performance. I expect that you are correct and that they determined the 13B was capable enough to serve as a base model. Why incur additional training time before getting preliminary results.
ca_tech··on Home Assistant blocked from integrating with Garage Door opener API
I buy a garage door opener. That is the end of my transaction.

I buy a connected garage door opener. The provider knows my geolocation, my name, email address, socioeconomic status, even the phone I own. Inferences can be made on activity such as "they leave for work at 7am when garage door opens".

The collection of data doesn't need to be used specifically for reengaging me with Chamberlain. It is now an asset to the company that can be sold to others as outlined in their Information Sharing section. Which basically says "we share it with everyone".

Partners can be anyone from insurance companies to academic researchers. Remember that partners aren't limited to just one data set. They have the ability to ask multiple companies: "What data do you have for all occupants of houses in this geographic area?"

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