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Robot metabolism: Toward machines that can grow by consuming other machines

https://www.science.org/doi/10.1126/sciadv.adu6897
23•XzetaU8•7h ago

Comments

littlestymaar•3h ago
Your scientists were so preoccupied with whether or not they could, they didn’t stop to think if they should.
neom•2h ago
Powerful self assembling machines controlled by artificial intelligence more capable than the average human, not your flavor of the month then I guess?

More seriously, are there public examples where inventors/technologists have ever actually said "we could do this but we won't"?

aeve890•1h ago
Common excuse for this kind of behavior is "evil people will do it regardless, so the only option for us is do it too to be prepared for when evil people use it for evil purposes".
h2zizzle•57m ago
It's weird that no one thinks to build an Iron Dome until well after the nuclear arms race has been chugging along for a while. The goal should be to checkmate potentially ruinous branches of a tech tree, not to be in perpetual check with them as they grow ever longer and spikier.
akomtu•3m ago
Demonic scientists are thinking hard how to feed our planet to machines.
gavinray•2h ago
"Mortal Engines" begins...

(One of my favorite Sci-Fi Young Adult series I read growing up)

https://en.m.wikipedia.org/wiki/Mortal_Engines

tl;dr = Post apocalypse, cities are giant mobile machines that eat and integrate smaller cities to survive

gmuslera•1h ago
Crabs on the Island, by Anatoly Dneprov, fits better in the idea.
datameta•2h ago
As long as there are enough paperclips to consume at the lowest trophic level we should be okay, right? Right?
chmod775•1h ago
If these things were truly possible on Earth, chances are life-forms based on it would have evolved.

For mostly-self-sufficient organisms in earth's environment, the versatility of carbon appears to outperform silicon on every metric that counts.

The molecular complexity of a single human lung cell still absolutely dwarfs that of even the most modern CPUs we are able to manufacture (apple to oranges, but true).

Out_of_Characte•1h ago
The evolution of our species was based on the carbon lifecycle. Yet the machines we produce are not evolving in a similar manner at all, just the ability to redraw everything from scratch is a luxury that evolution cannot make use of.

To reiterate, The belief that evolving machines have to match the kind of evolution we're subjected to is illogical. Machines wouldn't be there without us and we wouldn't have what we have now without evolving our machines.

nickpinkston•1m ago
It may be that life forms would have evolved it, but it could be us evolving to be able to create it, like spiders "inventing" their high-tension silk.

We're just way more capable of high complexity.

targetx•1h ago
These scientists should play Horizon Zero Dawn and seriously reconsider. This feels like a bad idea (however technologically impressive it is).
rightbyte•1h ago
In general it might be a bad idea to prospect dystopian sci-fi novels for VC pitching decks. Like, are there no adults in the room anymore.
vinceguidry•1h ago
Pitch them to Elon Musk instead. That's all he seems to care about.
neom•16m ago
Just thinking aloud: I've been in this industry for what will be going on 20 years now (startup/tech/venture funded stuff) - my observation is that things have become incredibly abstract over the past 15 years - people are very abstracted away from what they are really doing...in that, the capital is increasingly abstracted far far away from capital providers, capital allocators are increasingly abstracted away from the outcomes of the capital they allocate, and capital deployers are increasingly abstracted away from society at large. I do occasionally still run into people who I think "this is a fully formed sensible thoughtful responsible human" - but it's incredibly few and far between - I think the reason is primarily how decoupled everything in the system has become from it's upstream and downstream effects. The other consequence of this is that the competitive nature of market dynamics shift, things become hyper competitive because the unknowns become deeper. The inevitable geometry of large, scaled systems.

XMLUI

https://blog.jonudell.net/2025/07/18/introducing-xmlui/
94•mpweiher•1h ago•45 comments

The old Caveman Chemistry website (1996-2000)

https://cavemanchemistry.com/oldcave/
16•marcodiego•1h ago•0 comments

Coding with LLMs in the summer of 2025 – an update

https://antirez.com/news/154
129•antirez•4h ago•115 comments

A Tour of Microsoft's Mac Lab (2006)

https://davidweiss.blogspot.com/2006/04/tour-of-microsofts-mac-lab.html
101•ingve•5h ago•12 comments

LLM architecture comparison

https://magazine.sebastianraschka.com/p/the-big-llm-architecture-comparison
186•mdp2021•8h ago•12 comments

Java was not underhyped in 1997 (2021)

https://dylanbeattie.net/2021/07/01/java-is-criminally-underhyped.html
33•SerCe•3d ago•20 comments

Async I/O on Linux in databases

https://blog.canoozie.net/async-i-o-on-linux-and-durability/
132•jtregunna•9h ago•54 comments

US signals intention to rethink job H-1B lottery

https://www.theregister.com/2025/07/20/h_1b_job_lottery/
43•rntn•1h ago•36 comments

A human metaphor for evaluating AI capability

https://mathstodon.xyz/@tao/114881418225852441
90•bertman•7h ago•8 comments

Digital vassals? French Government 'exposes citizens' data to US'

https://brusselssignal.eu/2025/07/digital-vassals-french-government-exposes-citizens-data-to-us/
33•ColinWright•4h ago•6 comments

Dual interfacial H-bonding-enhanced deep-blue hybrid copper–iodide LEDs

https://www.researchsquare.com/article/rs-4114691/v1
7•gnabgib•3d ago•1 comments

Behind the ballistics of the 'explosive' squirting cucumber

https://phys.org/news/2025-07-ballistics-explosive-squirting-cucumber.html
36•PaulHoule•2d ago•4 comments

Show HN: MCP server for Blender that builds 3D scenes via natural language

https://blender-mcp-psi.vercel.app/
96•prono•9h ago•34 comments

I'm betting against AI agents, despite building them

https://utkarshkanwat.com/writing/betting-against-agents/
242•Dachande663•6h ago•139 comments

Show HN: ggc – A terminal-based Git CLI written in Go

https://github.com/bmf-san/ggc
36•bmf-san•4d ago•27 comments

How the 'Minecraft' Score Became Big Business for Its Composer

https://www.billboard.com/pro/how-minecraft-score-became-big-business-for-composer/
43•tunapizza•4d ago•15 comments

Hungary's oldest library is fighting to save books from a beetle infestation

https://www.npr.org/2025/07/14/nx-s1-5467062/hungary-library-books-beetles
158•smollett•4d ago•20 comments

Make Your Own Backup System – Part 1: Strategy Before Scripts

https://it-notes.dragas.net/2025/07/18/make-your-own-backup-system-part-1-strategy-before-scripts/
309•Bogdanp•19h ago•97 comments

The bewildering phenomenon of declining quality

https://english.elpais.com/culture/2025-07-20/the-bewildering-phenomenon-of-declining-quality.html
298•geox•7h ago•510 comments

Death by AI

https://davebarry.substack.com/p/death-by-ai
442•ano-ther•1d ago•178 comments

Robot metabolism: Toward machines that can grow by consuming other machines

https://www.science.org/doi/10.1126/sciadv.adu6897
23•XzetaU8•7h ago•15 comments

Nobody knows how to build with AI yet

https://worksonmymachine.substack.com/p/nobody-knows-how-to-build-with-ai
444•Stwerner•23h ago•349 comments

Can Software Be Durable?

9•maraoz•1h ago•10 comments

I tried vibe coding in BASIC and it didn't go well

https://www.goto10retro.com/p/vibe-coding-in-basic
142•ibobev•4d ago•148 comments

Beyond Meat fights for survival

https://foodinstitute.com/focus/beyond-meat-fights-for-survival/
139•airstrike•15h ago•349 comments

Roman Roads Research Association (UK)

https://www.romanroads.org/index.html
27•countrymile•9h ago•5 comments

Local LLMs versus offline Wikipedia

https://evanhahn.com/local-llms-versus-offline-wikipedia/
286•EvanHahn•22h ago•168 comments

How to run an Arduino for years on a battery (2021)

https://makecademy.com/arduino-battery
84•thunderbong•3d ago•23 comments

Mushroom learns to crawl after being given robot body (2024)

https://www.the-independent.com/tech/robot-mushroom-biohybrid-robotics-cornell-b2610411.html
148•Anon84•3d ago•42 comments

How Tesla is proving doubters right on why its robotaxi service cannot scale

https://www.aol.com/elon-gambling-tesla-proving-doubters-090300237.html
91•Bluestein•2h ago•123 comments