Neuralink Progress Update [video]
I'd be happy to be corrected by an actual neuroscientist, but I don't think some folks realize just how far away the Neuralink team is from being able to do any of the things they are claiming. Inserting electrodes in the brain is the easy part. The reason no one else has yet bothered with this level of miniaturization is because it won't be of much benefit until you can figure out a way to decode the signals reliably. This is extremely daunting, and it's something that has occupied lots of brilliant people full time for decades.