In my consumer research and in talking to people who build robots everyone wants a robot that looks like them.
Particularly in the hands.
Then when building (or buying) reality sets in.
Four fingers does pretty well. Costs 1/5th less. Is easier for today’s AI to handle. Is more reliable (fewer parts to break).
At
@mundanebot, which makes robots for dirty and dangerous jobs, I learned that two fingers can do about 40% of what a human hand can do. (This photo is of one of theirs).
Costs even less.
My question is whether Elon will stick to the full Monty hand for Optimus even though fewer fingers would increase reliability and reduce cost?
Use the right tool for the job.
If I were Elon I would make it possible to use a variety of hands. That way he can satisfy customers no matter what their needs are for a lower price.
@SharpaRobotics’s hands, for instance, cost $50,000 each.
Too expensive if two fingers does your job just great.
In other words
@kokowaters_ is right. Robots will probably have non-human-looking hands in many cases.
Two-finger, or even four, don’t look as cool on social media, either, so I bet the best-selling robots will offer both.
Just look at how much work
@sundayrobotics gets out of two fingers. It is why those companies with better AI will attract more buyers than the “sexy” bots that cost a lot more.
I've been preaching to whoever will listen: the most productive humanoids won't look like us.
Boston Dynamics just gave me the proof I needed.
They went with four fingers instead of five (13 DoF) and designed the whole hand from the ground up around simulation training rather than around what a human hand looks like.
That connects directly to what the research already showed us with DRC Atlas.
BD followed that same logic all the way to the hand, and when their engineers say four fingers are the minimum needed for a range of complex tasks, they're not cutting corners.
They're asking a more honest question than most of the industry is willing to ask right now: what does the task actually require, and what's the simplest form factor that delivers it?
That's the argument I've been making, and it's coming from one of the most credible names in the space.