Not saying Musk is aiming at mind control here at all -- I don't know what his motivations or goals are -- but why do you think it would be the last thing he would want brought into the world? It doesn't sound like a thing he'd philosophically object to.
Consider the following: Google has a collection of computers with inputs. One of those inputs can be accessed via the Google web search interface. When you search a term using the Google web interface, you are requesting control over a very small part of the collection of computers at Google in order to complete your request.
When you do this, you do not control all of Google, but you are exercising C2 over a tiny portion of it.
Now consider that Google was built on technologies that can precisely reject requests for control per request based on certain conditions. Google can reject requests based on your IP, your personal identity, the contents of the request, etc.
The human brain does not have facilities for doing that. It did not evolve with the expectation that it would be valuable to reject neurological patterns that behave like sensory inputs. An example of this would be like taking a psychoactive drug, and then trying to think it's effects away. You can't do it.
The difference between a psychoactive drug and a brain to computer interface is that one of them can dynamically impose specific neurological phenomena (what you call inputs) based on the intent of someone else, and the other one will land you in jail for possession.
> The facts are that if he was so benevolent he wouldn't be a billionaire. End of story.
I don't trust his benevolence, but that doesn't follow.
Money at that level exists as an indicator of the marginal amount someone else will pay to own a right to the expected future 20-ish years of the profits of the companies he owns, multiplied up as if there were enough people to buy all of it.
This kind of accounting can easily value the average final year university student in the UK at around a million pounds even if they've never had so much as a summer holiday job.
Sometimes this is enough to buy out the business, other times the attempt runs out of buyers and the price crashes part way through.
If Alice has a plan to save the world and doing so involves creating a company that someone else thinks can be asset-stripped for a trillion dollars, then Alice will be "worth" a trillion dollars.
Of course, I just wrote "Alice" rather than "Musk" because I want to make it clear I don't think Musk is anywhere near this angelic; it's just an illustration.
