18,479 karma · joined February 4, 2013
I make robots mostly. I want to figure out how robots can help solve social problems. Read my writing or see my portfolio at tlalexander.com and see my robots at http://reboot.love
My cool robot arm: https://twitter.com/TLAlexander/status/1455320442642714625
See my farming robotics work here: https://community.twistedfields.com/t/a-closer-look-at-acorn-our-open-source-precision-farming-rover/108
And:
https://community.twistedfields.com/t/join-the-solar-farming-revolution-support-acorn-and-empower-farmers-worldwide/370
You are welcome to email me but usually I don’t end up responding to out of the blue emails (due to procrastination or disorganization). [tlalexander at gmail]
Whose policy? Like, which politicians and what exactly is their policy?
Because that sounds more like the kind of thing people say they are trying to do, while hiding the fact that they are doing something different.
I have lived in the Bay Area my entire adult life. We used to have Halted/HSC, we used to have Weird Stuff. We used to have Triangle Machinery Co in Santa Clara. Now everything is gone.
I think it’s great that we built a semiconductor manufacturing plant. That’s important for strategic manufacturing. But we’ve so thoroughly destroyed our manufacturing base, let the factories rot, and financialized property value that the “weird place with random electronics” can no longer even afford to do business. Starbucks makes more money, so in it goes.
US politicians love to shout about manufacturing. “Manufacturing jobs jobs economy growth.” But these people DO NOT understand how things get made. They have no serious industrial policy. They do not know the value of a high speed train connecting manufacturing centers. And even if they did, the entire apparatus of our government is set up to stop it.
Manufacturing workers need education. They need housing, transit, health care, maternity and sick leave. They need secure jobs and extra income that allows them time off to take classes to learn new skills.
I’m glad we passed the inflation reduction act, and the CHIPS act. We need that investment. But it’s going to take much more than that to “bring manufacturing back” and I’ve have seen time and time again that we do not have the vision or capability to move in the ways that would be required.
I hope manufacturing comes back. We desperately need it. But I’m quite frustrated that despite some marginal progress, the serious changes we need are not on the horizon nor seemingly beyond it.
But something made with scooter wheels could be used to navigate around a city for example. That might be interesting.
I think I’ve seen suggestions of using the wheels for mars rovers, but a mecanum wheel that works in sand would need the rollers to be very large, so the actual wheel would be huge. That would suck up all your weight budget for your robot. Ackermann steering is lighter.
All that said, when you have a controlled environment with a flat floor, mecanum wheels are pretty rad!
Bonce Imaging is definitely my favorite.
https://gspp.berkeley.edu/research-and-impact/policy-initiat...
I encourage you to update your beliefs about other people. I’m a very technical person, but I work in robotics closer to the hardware level - I design motor controllers and Linux motherboards and write firmware and platform level robotics stacks, but I’ve never done any work that required running inference in a professional capacity. I’ve played with machine learning, even collecting and hand labeling my own dataset and training a semantic segmentation network. But I’ve only ever had my little desktop with one Nvidia card to run it all. Back in the day, performance of CNNs was very important and I might have looked at benchmarks, but since the dawn of LLMs, my ability to run networks has been limited entirely by RAM constraints, not other factors like tokens per second. So when I heard that MacBooks have shared memory and can run large models with it, I started to notice that could be a (relatively) accessible way to run larger models. I can’t even remotely afford a $6k Mac any more than I could afford a $12k Nvidia cluster machine, so I never really got to the practical considerations of whether there would be any serious performance concerns. It has been idle thinking like “hmm I wonder how well that would work”.
So I asked the question. I said roughly “hey can someone explain why OP didn’t go with this cheaper solution”. The very simple answer is that it would be much slower and the performance per dollar would be 10x worse. Great! Question answered. All this rude incredulousness coming from people who cannot fathom that another person might not know the answer is really odd to me. I simply never even thought to check benchmarks because it was never a real consideration for me to buy a system.
Also the “#1 topic in the tech sector right now” funny in my circles people are talking about unions, AI compute exacerbating climate change, and AI being used to disenfranchise and make more precarious the tech working class. We all live in bubbles.
The answer here is that the Nvidia system has much better performance. I’ve been focused on “can I even run the model” I didn’t think about the actual performance of the system.
And beyond the logistical challenges, I think it should be fair to say axiomatically that international travel is not an adequate solution to healthcare access.
I used to live near Cupertino, and the Valero station on De Anza and Prospect always played the local classical radio station. Driving a car is pretty tiring, and to take a break and have loud ads projected at you only adds to the stress. To instead step out of your car to modestly amplified classical music is really much better. I always made a point to stop at that specific station for gas. We really need to be more mindful of the world we create for one another.
[1] https://webgpu.github.io/webgpu-samples/?sample=texturedCube
> social media sites are already increasingly viewed by many people I know as having dubious value
I think we have all been saying this for 15 years but they keep getting more valuable.
Increasingly this just seems like fantasy to me. I suspect we will see big changes similar to the way computers changed the economy, but we will not see "capital as we know it become basically worthless" or "the modern economy and society around it collapse overnight". Property rights will still have value. Manufacturing facilities will still have value. Social media sites will still have value.
If this is a fantasy that will not happen, we really don't need to reason about the implications of it happening. Consider that in 1968 some people imagined that the world of 2001 would be like the film 2001: A Space Odyssey, when in reality the shuttle program was soon to wind down, with little to replace it for another 20 years.
As one example, Yann LeCun's vision of a system called JEPA [1] is interesting to me. It may not be the solution we need, but this type of thinking - taking what we have learned and exploring new architectures that may have even better real world performance - is what interests me.
[1] https://ai.meta.com/blog/v-jepa-yann-lecun-ai-model-video-jo...