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dqh

192 karma · joined July 6, 2010

Cortical Labs CTO https://corticallabs.com

Versatile Commodore Emulator (VICE) dev team

david.q.hogan@gmail.com https://www.linkedin.com/in/davidqhogan/

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dqh··on Making Startups Powerful
Thank you for these references, I really appreciate it.
dqh··on Making Startups Powerful
Agreed. They can probably afford to invest time into delighting those early customers i.e. doing things that don’t scale.
dqh··on Making Startups Powerful
I'm nearly always building early stage companies, where even the dev and operational overhead of charging for some added extra is not guaranteed to be paid for by the money collected.
dqh··on Making Startups Powerful
> Being generous makes you more powerful. As Tim O'Reilly said, you should create more value than you capture. Many hard-headed business types would write this off as idealistic hippy stuff, but in fact this is the route to becoming really rich.

> Hired CEOS take the power of the companies they run for granted, whereas founders remember the days when the company was so weak that it had to delight users to survive.

I've always instinctively followed the generosity path, and have experienced that when customers are delighted and that when frictions are removed (or not added in the first place), good things will follow.

However, I have not always been able to convince others to trust in and follow this path. Can anyone offer any advice or experiences on talking people out of trying to prematurely squeeze out every last penny?

dqh··on New Mexico court orders Meta to pay $567m over harms to children’s mental health
But they are less violent.
dqh··on Apple accidentally left Claude.md files Apple Support app
Perfectly for me I guess I should have said. Nonetheless, this md file packaging mistake suggests that at least once they’ve fallen into not reviewing changes properly, and I wonder if that lack of discipline is more widespread. I hope not, otherwise their ability to deliver on their privacy promises will be compromised.
dqh··on Apple accidentally left Claude.md files Apple Support app
It worked perfectly for a long before Claude and friends existed, so I don't think it follows that not using these tools has led to the problem now.
dqh··on Apple accidentally left Claude.md files Apple Support app
I’ve been wondering if vibe coding was responsible for the recent introduction of acoustic echo cancellation (AEC) bugs in FaceTime (muting and unmuting the microphone appears to temporarily fix it). Apple has always had excellent AEC in my experience, it’s sad to see them breaking a fundamental phone function.
dqh··on Cloudflare flags archive.today as "C&C/Botnet"; no longer resolves via 1.1.1.2
This particular revolver is an opt-in service for users that want Cloudflare to block anything that Cloudflare designates as malware.
dqh··on Living human brain cells play DOOM on a CL1 [video]
We'll likely leave the answering of your equivalence question to our users. While we do plenty of internal research, the primary goal of our cloud platform is to dramatically expand access to this field. There are no doubt many low-hanging fruits to be discovered.
dqh··on Living human brain cells play DOOM on a CL1 [video]
It's not the case at all - years ago we tested Pong with human neurons vs mouse neurons, and human neurons performed better. More importantly, they allow the study of the effect of external interventions (such as trial medicines) on the learned function of human neurons. So we spent years building a machine and software platform to facilitate this sort of research.

The Doom project is mostly a bit of fun that demonstrates how quickly someone new to the field can see real results with our platform. Our data scientists believe that biological learning was demonstrated in this case.

dqh··on Living human brain cells play DOOM on a CL1 [video]
Thanks!

We focus on using real neurons, I'm not aware of a software based equivalent. But users can `pip install cl-sdk` to get started with our API. The SDK is still early but supports playing back a recording of real data so applications can be built with a realistic spike frequency. (We'll be releasing a set of recordings for this)

dqh··on Living human brain cells play DOOM on a CL1 [video]
Cortical Labs CTO here. My focus is on the system itself rather than applications, but for what it's worth ..

When the neurons didn't get stimulated by the application, performance did not improve. The only explanation our data science people has is that the neurons began to learn and perform the desired (highly abstracted) task of 'playing Doom'. This was not a surprise as we've shown this before with a version of Pong using a different platform. We built the CL1 and the CL API to enable rapid iteration on this sort of work.

One benefit to this is that when you have a measurable learning effect, you can measure this before and after exposure to an experimental drug or other molecule. It becomes possible to test the impact on neuron function, not just survival.

dqh··on Ask HN: Who here is not working on web apps/server code?
The neurons live on an electrode array kept inside a machine which keeps them alive (body temperature, sugar, gas, etc). The embedded system continually measures the voltage at each electrode, and can electrically stimulate the neurons via the same.

Users are provided with an easy to use Python API that allows realtime observation of the raw signals and of detected action potentials (spikes). They can also execute precisely controlled stimulation sequences, which allows information to be presented to the neurons. Then there are a lot of higher level application APIs to handle things like recording data, real-time visualisation, and experiment config management.

Why: it appears to be possible to teach neurons to perform tasks (we taught some to play pong several years ago). Since then our focus has been on building a system that enables rapid iteration in this sort of research. We're selling the system to organisations that have the appropriate biology skills, and renting access to hosted devices where we provide and take care of the cells.

dqh··on Ask HN: Who here is not working on web apps/server code?
I work on the software stack for a biological computing platform (think: tool for programming with human neurons in a dish).

Coding work spans FPGA (SystemVerilog), Linux kernel C, userspace C, Python, and yes, some web services and Browser JavaScript also. I also work on the network engineering of the cloud service and on the Linux OS image.

Easily the most fun I’ve had as a developer and I’ve worked on lots of different types of commercial software projects before. Not all the world is web apps, embedded work can be very satisfying if you’ve not considered it.

dqh··on Waymo robotaxis are now giving rides on freeways in LA, SF and Phoenix
If a programmer is more efficient with AI then you need fewer programmers, assuming a fixed amount of work is needed. So in that sense AI would be replacing programmers.
dqh··on When you opened a screen shot of a video in Paint, the video was playing in it
This reminds me of the time when Quake started rendering inside the start button of the Windows 95 desktop (or maybe Win 98). I wish I could remember the details but it think it was something to do with alt-tab.
dqh··on Learning basic electronics by building fireflies
Thank you - I recently picked up the art of electronics but wasn’t aware of this companion book.
dqh··on Learning basic electronics by building fireflies
This sounds incredible and makes me want to go through a similar learning process. I don’t suppose anyone could recommend a book or course along these lines?
dqh··on Whose code am I running in GitHub Actions?
I've never liked the idea of community actions in the critical build path, so I use official actions/* when I can, and otherwise use actions/github-script to invoke the GitHub API via inline JavaScript when I can't.
dqh··on I am rich and have no idea what to do
You could have some kids, and let them lead you :)
dqh··on Should more of us be moving to live near friends?
> This is in spite of having a long list of technical accomplishments and an impeccable public track record under my belt.

If skills aren’t the problem, one possibility is that a rigid attitude, lack of humility, or something like that is rubbing interviewers the wrong way. Please forgive my unsolicited advice and good luck with the search.

dqh··on Alzheimer's study shows ketone bodies help clear misfolded proteins
You don’t need to fast, you just need to stop eating carbs.
dqh··on A career-ending mistake
45 here, happily married with kids and yet I love writing software more than ever.
dqh··on Is the 80 character line limit still relevant? (2008)
I'm comfortable that I'm writing code that's easy to understand and modify years later.
dqh··on Is the 80 character line limit still relevant? (2008)
Yes, not impossible, but in my opinion requiring a waste of energy.
dqh··on Is the 80 character line limit still relevant? (2008)
An 80 character limit is difficult to stay within when using highly descriptive variable names, and I think the benefits of highly descriptive variable names outweigh other considerations.
dqh··on VanillaJSX.com
Those interested in this space may find my fairly unknown project interesting: https://nakedjsx.org/

It started as a static site generator but added a bunch of support for client JavaScript too.

dqh··on Launch HN: SSOReady (YC W24) – Making SAML SSO painless and open source
Magnificent, thank you!
dqh··on macOS in QEMU in Docker
I’ve been continually using Linux for various purposes since the late 90s, and recently wrote a non-trivial kernel module for an embedded device. So I’m veteran-ish.

I tried Ubuntu on my MBP because I thought its popularity would mean the best chance of things working out of the box. I’m long past having time to spend on getting basic things working.

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