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Scientists generally believe that brain organoids—three-dimensional tissue clusters that mimic certain brain structures—are too simple to support consciousness. But as brain organoids become increasingly complex, there is a theoretical possibility that some of them could one day surpass this threshold.
Brain organoids created to date typically represent only one part of the brain. They are used to study brain development, diseases, and drug side effects without requiring animals or the human brain.
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In a Live Science poll, we asked readers whether it would be acceptable to experiment with lab-grown “brains” if they became conscious. Around 657 readers responded before the poll closed.
About 25% of respondents said they do not believe it is appropriate to experiment with conscious organoids, but they do allow the use of unconscious organoids under close supervision. Another 23% believe that experimenting with them is unethical.
Meanwhile, 22% of readers said they would support the creation of new regulations that take organoid welfare into account, while another 19% believed no regulatory changes were needed. The remaining readers were undecided.
Some readers warned that this study lacked foresight. “Do we have a plan for where this will lead? Confining conscious entities to a laboratory plate seems somewhat illogical,” wrote Duvidhameichayaadmi.
Some argued that the scientific benefits justified the risks. “If the benefits outweigh the moral dilemma, do it quickly, do it as humanely as possible, and MANDATORY make it clear to everyone that it's necessary, otherwise no revolutionary breakthrough will occur,” wrote GodParticle. “I truly don't see any breakthrough here that would be worth the literal lives of these creatures once they gain consciousness. I have no mouth, and I must scream…”
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For others, the moral line seemed perfectly clear. “Obviously, if there's even the slightest sign of consciousness, we have a moral duty to stop the experiments,” Toby commented, to which GodParticle responded, “Yes, but we're not scientists or their corporate/educational bosses…”
Another user thought the dilemma was reminiscent of a plotline straight out of Star Trek: The Next Generation. (STNG) “Honestly, I'm not so sure about that at all—the positive effects of the experiments are enormous, but I think we need to figure out where the humanity lies here… it sounds a lot like the STNG problem,” Slater said.
One respondent emphasized that, in his view, our ethical concern for other beings is inconsistent. “It's truly touching to see people cry over brain cells in a test tube. But where does this sacred compassion go when monkeys are dissected alive, dogs are poisoned, and billions of pigs are ground up in factories every year?” Asish wrote.
What do you think? Share your thoughts in the comments below.
Elise Pour, Social Link Navigation, Assistant Editor
Elise studied marine biology at the University of Portsmouth in the UK. She worked as a freelance journalist, specializing in aquatic topics.
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