For those who haven't read it, the 'Wait But Why' extensive blogpost on Neuralink (warning, it's super long, I think it has enough of a wordcount to qualify as a novel if it was one) is probably the most fascinating thing I've read in the last 5 years:
A lot of it is speculation by necessity, and I'm sure some is outdated now, but it's also packed with facts and the reasoning seems sound. If anyone knows whether any of it has been debunked, I would be interested in that as well.
Plans are to install the first chips with over 1000 connectors within a year.