"Necessary" for what purpose? From the article: >> Musk’s promise was to revolutionize prostheses and engineer an implant that would allow human brains to comm

"Necessary" for what purpose? From the article: >> Musk’s promise was to revolutionize prostheses and engineer an implant that would allow human brains to communicate wirelessly with artificial devices, and even each other. And from wikipedia: >> In April 2017, Neuralink announced that it was aiming to make devices to treat serious brain diseases in the short-term, with the eventual goal of human enhancement, sometimes called transhumanism.[16][7][17] https://en.wikipedia.org/wiki/Neuralink https://en.wikipedia.org/wiki/Neuralink It seems that while there might be medical applications of the developed technology it is not primarily developed for medical purposes. Plugging your brain to your iPhone doesn't sound like a great justification for animal experimentation.