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Geeetoday at 5:24 PM7 repliesview on HN

I've kind of given up on humanoid robotics, because of how bad the actuators are. There has been no innovation in robotic actuators since Honda's Asimo. There's just no way that someone wants a 80kg wobbling tin can in their home or workplace.

My bet is that the final robotic revolution will use genetically modified human/animal bodies with replaced brains. You'll have to stretch your ethics a bit, but if you grow a bear genetically modified in a way that it has no consciousness or thought, it'll make a much better construction worker than any humanoid robot. You'll just need to wire it up with neuralink and then control it via LLM. Fast animals can be used to deliver packages, and giraffes for warehouses.


Replies

hermitShelltoday at 5:37 PM

That is a truly terrifying future to imagine. Fortunately I would hazard to guess the medical technology to accomplish something like this is very, very far away. Not only because of the raw technological challenge, but also the barriers to development that scientists, doctors, and engineers would face before even being allowed to conduct experiments.

I do agree though the humanoid form is a dead end for robots. Just build giant cubes that process inputs and give outputs, like a dishwasher. Why wash dishes with meat wand tentacles or try to recreate meat wand tentacles when you can accomplish the job in a wholly different way with far greater efficiency...?

Where's the clothes foldeing cube? Analogous to the clothes washer and clothes dryer.... the clothes folder...

Why stop at dishwashing...? Sell an entire integrated robotic kitchen.

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random3today at 5:36 PM

Cortical Labs has been doing work in this area. They had a Doom demo a while ago. I think it's a matter of tradeoffs. Perhaps you'd have biological version as a versatile all-around thing, but many tasks don't require that so likely the tin variants are more durable for many tasks. Also, in terms of reasoning, the brain bandwidth is very low and high latency so there are advantages to silicon chips there.

It's interesting to learn actuators are "behind". I kept seeing cool stuff in the 3D printing space and thought there's a lot of progress. I'd love to learn more.

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krisofttoday at 5:47 PM

> giraffes for warehouses.

I’m not even sure if you are joking there or haven’t thought your proposal through. Sure giraffes are tall, but they can barelly lift any weight. What use would a robotically controlled giraffe be in a warehouse?

> There has been no innovation in robotic actuators since Honda's Asimo.

I very much doubt this. If nothing else the MIT Cheetah’s actuators are a whole different ballgame compared to asimo’s actuators. (Backdriveability, variable stiffness) And then there is a lot of interesting work being done with combining elastic elements with the actuators.

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AnodicElegytoday at 5:34 PM

That seems like a problem orders of magnitude harder than making a humanoid robot. We haven't even figured out how to make hamburgers without cows at a marketable price yet.

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siekmanjtoday at 6:55 PM

I could not disagree more with the claim about no improvement in robotic actuators.

The torque density and price of actuators has fallen dramatically since Ben Katz's MIT work on mini cheetah. The actuators on the Unitree G1 based on that work are powerful for their size and near quasi-direct-drive. The motors on the BD E-Atlas are completely passively cooled and appear to have really good torque density. Actuators have never been improving faster than they are now.

Ciantictoday at 6:42 PM

Did you look at 1X's artificial tendon driven hands?

creaturemachinetoday at 7:02 PM

The world can't support the number of bodies on it already, and you're proposing adding mindless meatbags that still need feeding and their waste managed? Are you going to accept an amazon package that's had giraffe poop sprayed on it while picking, or change your meat-robot's diaper? I didn't think so.