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These researchers are helping to remove one of the big problems with BMI chips - the wire protruding out of the head.

But these BMI chips still suffer from one other major problem. Over the course of a few months to a few years, scar tissue will start to grow around the chips. This tissue not only interferes with the electrodes on the chip, but also endangers the living tissue around the chip. The chips eventually have to be removed.

That's not necessarily true, depending on how the chips are implanted. We've been putting chunks of metal into people for 80 years and have gotten pretty good at it.

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