science
Scientists can now grow tiny, pea-sized clumps of living brain tissue in the lab by coaxing stem cells to organize themselves.
Brain organoids grow when stem cells in a lab dish organize into small clumps mimicking some features of real brain development, including layered structures and cell types found in actual tissue. Researchers grow these pea-sized structures to study disease development, test drug effects, and explore early brain development without experimenting on a living brain.
Neural fossils isn't a real term; fossils are preserved ancient remains, unrelated to actively growing lab tissue. Synthetic neurons printed in metal sounds like robotics, not the biological tissue organoids actually are.
Despite mimicking some structural features, organoids remain far simpler than a real brain, lacking blood vessels and full circuitry, and there's no evidence they can think, feel, or have any consciousness.
science
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