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BQ 3A News > Blog > UK > Lately’s humanoid robots glance outstanding, however there’s a design flaw retaining them again
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Lately’s humanoid robots glance outstanding, however there’s a design flaw retaining them again

August 8, 2025
Lately’s humanoid robots glance outstanding, however there’s a design flaw retaining them again
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Watch Boston Dynamics’ Atlas robotic doing coaching routines, or the newest humanoids from Determine loading a washer, and it’s simple to imagine the robotic revolution is right here. From the out of doors, it kind of feels the one closing problem is perfecting the AI (synthetic intelligence) instrument to permit those machines to care for real-life environments.

However the business’s greatest gamers know there’s a deeper downside. In a up to date name for analysis partnerships, Sony’s robotics department highlighted a core factor retaining again its personal machines.

It famous that as of late’s humanoid and animal-mimicking robots have a “limited number of joints”, which creates a “disparity between their movements and those of the subjects they imitate, significantly diminishing their … value”. Sony is looking for brand spanking new “flexible structural mechanisms” – in essence, smarter bodily our bodies – to create the dynamic movement this is recently lacking.

The core factor is that humanoid robots have a tendency to be designed round instrument that controls the whole thing centrally. This “brain-first” way leads to bodily unnatural machines. An athlete strikes with grace and potency as a result of their frame is a symphony of compliant joints, versatile spines and spring-like tendons. A humanoid robotic, in contrast, is a inflexible meeting of steel and motors, hooked up by means of joints with restricted levels of freedom.

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To struggle their frame’s weight and inertia, robots must make hundreds of thousands of tiny, power-hungry corrections each and every 2nd simply to keep away from toppling over. Because of this, even probably the most complicated humanoids can handiest paintings for a couple of hours sooner than their batteries are exhausted.

To place this in viewpoint, Tesla’s Optimus robotic consumes round 500 watts of continual in keeping with 2nd for a easy stroll. A human accomplishes a extra difficult brisk stroll the usage of handiest round 310 watts in keeping with 2nd. The robotic is subsequently burning just about 45% extra calories to perform a more practical process, which is a substantial inefficiency.

Diminishing returns

So, does this imply all the business is at the unsuitable trail? In terms of their core way, sure. Unnatural our bodies call for a supercomputer mind and a military of tough actuators, which in flip make robots heavier and thirstier for calories, deepening the very downside they target to resolve. The growth in AI could be breathtaking, but it surely ends up in diminishing returns.

Tesla’s Optimus, for example, is sensible sufficient to fold a t-shirt. But the demonstration in fact finds its bodily weak point. A human can fold a t-shirt with out in reality taking a look, the usage of their sense of contact to really feel the material and information their actions.

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Optimus, with its quite inflexible, sensor-poor arms, depends on its tough imaginative and prescient and AI mind to meticulously plan each and every tiny movement. It will most probably be defeated by means of a crumpled blouse on a messy mattress, as a result of its frame lacks the bodily intelligence to evolve to the unpredictable state of the true global.

Boston Dynamics’ new, all-electric Atlas is much more spectacular, with a variety of movement that turns out nearly alien. However what the viral acrobatics movies don’t display is what it could’t do. It would now not stroll optimistically throughout a mossy rock, for example, as a result of its ft can’t really feel the skin to adapt to it. It would now not push its manner via a dense thicket of branches, as a result of its frame can’t yield after which spring again.

Because of this, regardless of years of construction, those robots most commonly stay analysis platforms, now not industrial merchandise.

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Why aren’t the business’s leaders already pursuing this other philosophy? One most probably reason why is that as of late’s best robotics companies are basically instrument and AI corporations, whose experience lies in fixing issues of computation. Their international provide chain is optimised to reinforce this with high-precision motors, sensors and processors.

Development bodily clever robotic our bodies calls for a distinct production ecosystem, rooted in complicated fabrics and biomechanics, which isn’t but mature sufficient to function at scale. When a robotic’s {hardware} already appears so spectacular, it’s tempting to imagine the following instrument replace will remedy any closing problems, quite than enterprise the pricey and hard process of redesigning the frame and the provision chain required to construct it.

Self sustaining our bodies

This problem is the focal point of mechanical intelligence (MI), which is being researched by means of a lot of groups of teachers world wide, together with mine at London South Financial institution College. It derives from the commentary that nature perfected clever our bodies hundreds of thousands of years in the past. Those have been in keeping with a concept referred to as morphological computation, that means our bodies can carry out advanced calculations routinely.

A pine cone’s scales open in dry prerequisites to unencumber seeds, then shut when it’s damp to offer protection to them. It is a purely mechanical reaction to humidity and not using a mind or motor concerned.

The tendons within the leg of a operating hare act like clever springs. They passively soak up surprise when the foot hits the bottom, handiest to unencumber the calories to make its gait solid and environment friendly, with out requiring such a lot effort from the muscle tissue.

Hare as of late …
Colin Edwards Wildside

Take into accounts the human hand. Its cushy flesh has the passive intelligence to routinely comply with any object it holds. Our fingertips act like a sensible lubricator, adjusting moisture to succeed in the very best point of friction for any given floor.

If those two options have been integrated into an Optimus hand, it might have the ability to dangle gadgets with a fragment of the pressure and effort recently required. The surface itself would grow to be the pc.

MI is all about designing a system’s bodily construction to succeed in passive computerized adaptation – the facility to reply to the surroundings with no need energetic sensors or processors or further calories.

The option to the humanoid lure isn’t to desert as of late’s formidable bureaucracy, however to construct them consistent with this other philosophy. When a robotic’s frame is bodily clever, its AI mind can center of attention on what it does absolute best: high-level technique, finding out and interacting with the arena in a extra significant manner.

Researchers are already proving the worth of this way. For example, robots designed with spring-like legs that mimic the energy-storing tendons of a cheetah can run with outstanding potency.

My very own analysis staff is creating hybrid hinges, amongst different issues. Those mix the pinpoint precision and energy of a inflexible joint with the adaptive, shock-absorbing homes of a compliant one. For a humanoid robotic, this might imply making a shoulder or knee that strikes extra like a human’s, unlocking a couple of levels of freedom to succeed in advanced, life-like movement.

The way forward for robotics lies now not in a struggle between {hardware} and instrument, however of their synthesis. Through embracing MI, we will be able to create a brand new era of machines that may in any case step optimistically out of the lab and into our global.

TAGGED:DesignflawholdinghumanoidremarkableRobotstodays
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