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Physical Intelligence is building a brain for robots

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Re: Physical Intelligence is building a brain for robots

#31

Post by Jensson »

apienx wrote: post #7

A 4 year old child has 16k wake hours x 3600 s/hour x 1^6 optical nerve fibers x 2 eyes x 10 bytes/s = 1^15 bytes (approximation by Yann LeCun). Processing visual input is the current bottleneck for robots that want to make sense of the physical world. Glad somebody's looking into it (no pun intended). I just hope their plan is more sophisticated than throwing more computational power at the problem.

You need much less if you are fine with horse level understanding of 3d environments. Those get to a working level much faster (hours) and are still good enough to navigate complex environments safely and not step on children.

Then you realize the limitation isn't the training data but the base model that was trained from hundreds of millions of years of evolution, and you start to see the real potential hurdle we have to clear.

Re: Physical Intelligence is building a brain for robots

#32

Post by thfuran »

Jensson wrote: post #31
apienx wrote: post #7

A 4 year old child has 16k wake hours x 3600 s/hour x 1^6 optical nerve fibers x 2 eyes x 10 bytes/s = 1^15 bytes (approximation by Yann LeCun). Processing visual input is the current bottleneck for robots that want to make sense of the physical world. Glad somebody's looking into it (no pun intended). I just hope their plan is more sophisticated than throwing more computational power at the problem.

You need much less if you are fine with horse level understanding of 3d environments. Those get to a working level much faster (hours) and are still good enough to navigate complex environments safely and not step on children. Then you realize the limitation isn't the training data but the base model that was trained from hundreds of millions of years of evolution, and you start to see the real potential hurdle we ha…

Something like half a billion years of pretraining if you start counting from the first brain.

Re: Physical Intelligence is building a brain for robots

#33

Post by thfuran »

OkayPhysicist wrote: post #27
iambateman wrote: post #25

Earlier quoted context omitted.

Sure, I’m squarely in the “private killer robots are bad” camp, but my point is that a lot of people will disagree there. My state passed a law last week saying 18-year-old children can open carry a gun without a license. It’s very possible that the 2A people get energized and the Supreme Court is sufficiently out of touch to get this right.

There are no 18 year old children. Those are adults, with all the rights and responsibilities that come with that title.

Not all of them. They can't drink, be a senator, or (in some states) rent a car.

Re: Physical Intelligence is building a brain for robots

#34

Post by chenxi9649 »

thfuran wrote: post #32
Jensson wrote: post #31

Earlier quoted context omitted.

You need much less if you are fine with horse level understanding of 3d environments. Those get to a working level much faster (hours) and are still good enough to navigate complex environments safely and not step on children. Then you realize the limitation isn't the training data but the base model that was trained from hundreds of millions of years of evolution, and you start to see the real potential hurdle we ha…

Something like half a billion years of pretraining if you start counting from the first brain.

And 10 or so billion years of preparing the training environment

Re: Physical Intelligence is building a brain for robots

#35

Post by eindiran »

snuxoll wrote: post #26
iambateman wrote: post #25

Earlier quoted context omitted.

Sure, I’m squarely in the “private killer robots are bad” camp, but my point is that a lot of people will disagree there. My state passed a law last week saying 18-year-old children can open carry a gun without a license. It’s very possible that the 2A people get energized and the Supreme Court is sufficiently out of touch to get this right.

In my state (Idaho), and many others, simply using a camera drone to spot game is illegal (even using it to locate wounded/downed game, because it provides an easy excuse). Drone with a gun is an entirely different level and to my knowledge is broadly banned across the country.

The 3 things mentioned so far are governed by very different regulatory regimes:

- Using a camera drone to spot game will fall under the purview of both Federal and state level Fish and Game/Wildlife departments, eg https://en.wikipedia.org/wiki/California_Department_of_Fish_... AFAIK this is not federally illegal, so there should be plenty of places where you can do this in the US.

- Drone (I assume you mean some quadcopter UAV) with a gun falls under FAA guidelines. You can't intentionally destroy them in flight or attach weapons to them for the same reason that you can't do that with planes: they are aircraft and the FAA doesn't want to deal with you shooting down aircraft. Since the FAA is federal, you can't do this anywhere in the US.

- Robot with a gun falls under ATF guidelines, specifically ATF letters that indicate certain classes of electronic trigger are effectively a machine gun and fall under the purview of the NFA. Same as point 2, the ATF rules will apply federally. If you have the relevant licensing, which I think would fall under a Class 2 SOT FFL, you can hook a firearm up to a robot since you are legally allowed by the ATF to manufacture machine guns. Most (?) of the Youtubers who have given guns to those offbrand Spots are doing it legally under the supervision of a Class 2 SOT.

- The autonomous robot with a gun would fall under the third point, as I am unaware of any rulings about specifically autonomous stuff, though someone could potentially make the argument that past rulings on booby traps could apply.

None of this directly answers the OP question about whether the 2nd amendment applies, but broadly federal regulation has moved past "shall not be infringed", so what the relevant federal agencies actually de facto allow is more to the point.

Re: Physical Intelligence is building a brain for robots

#36

Post by thfuran »

chenxi9649 wrote: post #34
thfuran wrote: post #32

Earlier quoted context omitted.

Something like half a billion years of pretraining if you start counting from the first brain.

And 10 or so billion years of preparing the training environment

Well, we get to use most of that for free.

Re: Physical Intelligence is building a brain for robots

#37

Post by tomjakubowski »

hn_acker wrote: post #12
apienx wrote: post #7

A 4 year old child has 16k wake hours x 3600 s/hour x 1^6 optical nerve fibers x 2 eyes x 10 bytes/s = 1^15 bytes (approximation by Yann LeCun). Processing visual input is the current bottleneck for robots that want to make sense of the physical world. Glad somebody's looking into it (no pun intended). I just hope their plan is more sophisticated than throwing more computational power at the problem.

> A 4 year old child has 16k wake hours x 3600 s/hour x 1^6 optical nerve fibers x 2 eyes x 10 bytes/s = 1^15 bytes (approximation by Yann LeCun). Unfortunate typo. You meant 10^15 bytes at the end. Thanks to your citation I was able to find a podcast transcript [1] with Yann LeCun's explanation: > If you talk to developmental psychologists and they tell you a four-year-old has been awake for 16,000 hours in his or h…

How is it determined that the optic nerve transmits 20 MB/sec of data?

Re: Physical Intelligence is building a brain for robots

#38

Post by cultofmetatron »

OkayPhysicist wrote: post #27
iambateman wrote: post #25

Earlier quoted context omitted.

Sure, I’m squarely in the “private killer robots are bad” camp, but my point is that a lot of people will disagree there. My state passed a law last week saying 18-year-old children can open carry a gun without a license. It’s very possible that the 2A people get energized and the Supreme Court is sufficiently out of touch to get this right.

There are no 18 year old children. Those are adults, with all the rights and responsibilities that come with that title.

this is America!

18 years old + white -> child

12 years old + Black -> adult

I don't make the rules. I dont' understand them either

Re: Physical Intelligence is building a brain for robots

#39

Post by beambot »

apinstein wrote: post #16
HeyLaughingBoy wrote: post #11

Earlier quoted context omitted.

Is it? What if that 4-year-old child were blind? Obviously their concept of the physical world would be different, but is it any less accurate? If we remove the need for visual perception, thereby removing that bottleneck, how much faster would we be able to make progress?

I think it would be significantly less accurate. Their error rates for performing physical tasks would be different b/w they lack the sensors to accurately train decent world models. For instance, I don't think they could catch a ball at the same skill level as a sighted child no matter how hard they tried. So the lack of that sensor will cause the brain to develop poor representations of motion in 3d space. How lack…

Blind people are still wildly capable people. If your goal is to build a "wildly capable digital brain akin to a person", then the lower bound is much less than 10^15 proposed by LeCun's reasoning.
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