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Science

Scientists Create 'Xenobots' -- Virtual Creatures Brought to Life (nytimes.com) 35

"If the last few decades of progress in artificial intelligence and in molecular biology hooked up, their love child — a class of life unlike anything that has ever lived — might resemble the dark specks doing lazy laps around a petri dish in a laboratory at Tufts University."

The New York Times reports on a mind-boggling living machine that's programmable -- and biodegradable. Strictly speaking, these life-forms do not have sex organs — or stomachs, brains or nervous systems. The one under the microscope consisted of about 2,000 living skin cells taken from a frog embryo. Bigger specimens, albeit still smaller than a millimeter-wide poppy seed, have skin cells and heart muscle cells that will begin pulsating by the end of the day. These are all programmable organisms called xenobots, the creation of which was revealed in a scientific paper in January...

A xenobot lives for only about a week, feeding on the small platelets of yolk that fill each of its cells and would normally fuel embryonic development. Because its building blocks are living cells, the entity can heal from injury, even after being torn almost in half. But what it does during its short life is decreed not by the ineffable frogginess etched into its DNA — which has not been genetically modified — but by its physical shape. And xenobots come in many shapes, all designed by roboticists in computer simulations, using physics engines similar to those in video games like Fortnite and Minecraft...

All of which makes xenobots amazing and maybe slightly unsettling — golems dreamed in silicon and then written into flesh. The implications of their existence could spill from artificial-intelligence research to fundamental questions in biology and ethics. "We are witnessing almost the birth of a new discipline of synthetic organisms," said Hod Lipson, a roboticist at the Columbia University who was not part of the research team. "I don't know if that's robotics, or zoology or something else."

An algorithm running for about 24 hours iterated through possible body shapes, after which the the two researchers tried "to sculpt cellular figurines that resembled those designs." They're now considering how the process might be automated with 3-D cell printers, and the Times ponders other future possibilities the researchers have hinted at for their Xenobots. ("Sweep up ocean microplastics into a larger, collectible ball? Deliver drugs to a specific tumor? Scrape plaque from the walls of our arteries?")

Sharing the Times' story on Twitter, Vint Cerf summed it up with just three words> .

"This is weird."
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Scientists Create 'Xenobots' -- Virtual Creatures Brought to Life

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  • In the same way a severed finger or surgically-removed thyroid could be considered alive, it sounds like.

    • They are starting with cells and just rearranging them, and the cells have the capability themselves to reconfigure into "heart" cells, "skin" cells, and all the rest. Rather like stem cells, its the biological equivalent of, "Oh, just paste this big block of code anywhere, it will reconfigure itself to be an accounting app, a TCP/IP stack, an IDE, a database engine, whatever you happen to need, which it figures out from the context it's pasted into."

      All the significant Design here happened well before the

  • "I don't know if that's robotics, or zoology or something else."

    That something else will inevitably be "Zoobotics."
  • by DontBeAMoran ( 4843879 ) on Sunday April 05, 2020 @06:33PM (#59911522)

    The one under the microscope consisted of about 2,000 living skin cells taken from a frog embryo. [...] A xenobot lives for only about a week, feeding on the small platelets of yolk that fill each of its cells and would normally fuel embryonic development.

    Scientists: "This is... this is magnificent."
    Ian Malcolm: "Oh, yeah. Oooh, ahhh, that's how it always starts. Then later there's running and screaming."

  • I've seen this movie.... it doesn't end well for.. well... anyone, actually.
  • In a preview demo of "Doom: Thy Flesh Recycled".

  • Their real goal is to give themselves a 12-inch wanker.

  • Nice things to say to your child No. 37.

  • Let's just allow scientists to make things that don't belong in the environment and release them into the environment because, well, because they are soo damned intelligent and know what ALL the unforeseen consequences will be. These guys have been on the range far too long already. Time to round them up and pen them.
    • Comment removed based on user account deletion
      • Because most people with some education, intelligence and life experience have the database to understand what I'm saying.
    • They haven't yet released this into any environment other than a petri dish. Despite the fear mongering anti-intellectuals among us, most scientists put years of research into possible ramifications before tossing some new this out into the world. This is something new enough it probably won't see real world application for decades. Why be terrified of new discovery? Had the article been about how they're injecting this into dairy cattle to see what effects it has on the population, sure, be terrified.
      • Why? Nuclear power for one. Chernobyl, Three Mile Island, Fukushima. Scientists were certain they knew how to make nuclear power safe. Thalidimide. Excuse me if the certainty of scientists that they are doing good does not impress me.
  • Seems like brine shrimp [bassic-sax.info] were more 'alive' than these were, and probably more interesting. xD
  • "A xenobot lives for only about a week, feeding on the small platelets of yolk that fill each of its cells..." Until they learn how to feed off of something else, I guess. Sort of reminds me of Bill Cosby's "The Chicken Heart that ate up New York City" (https://www.youtube.com/watch?v=fE0hHEtkkQA) Well, except for the part where the Chicken Heart rang for the elevator...

    But hey, what could go wrong?

    • by cusco ( 717999 )

      They're clusters of isolated organ cells, they can't "learn" anything at this point and they can't reproduce so they can't evolve into something that can eat either.

  • So, what are they trying to create: The Blob [wikipedia.org], The Raft [wikipedia.org], The Stuff [wikipedia.org] or maybe some Phantoms [wikipedia.org]? :(

  • thought the post was about some new anime...oh well back to watching the shield hero.

  • ...I stand in line.
    I am the prototype of a beign convenience for mankind
    Superior is digital, human flesh so trivial
    I hate that I can't see the one that made me
    I am the new awakening of different eyes
    My children you are my army
    They are what we can never see and still despise
    And their sky cried Mary
    - Nevermore "Sentient Six"
    https://www.youtube.com/watch?... [youtube.com]
    Once again, life imitating art it would seem.

"Oh what wouldn't I give to be spat at in the face..." -- a prisoner in "Life of Brian"

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