Fortunately, for all the hype, we have at least the next 20 years to think about such technologies. Furthermore, the history of tech shows that wealthy people get toys first and then the rest of us get the same toys much more cheaply a short while later, because mass markets are where the money is. Mercedes may have pioneered anti-lock brakes and airbags, but they're on the cheapest cars now as standard. Most of the things people always obsess about with new technologies never come to pass, simply because we always see the same behavioral and economic models playing out. As for Musk's neuralink, if a few very wealthy people want to line up to be Guinea-pigs for astonishingly invasive and risk-prone surgery, I'm sure their eager beneficiaries will insist on the creation of suitable Last Wills & Testaments prior to the operation.