Don’t be fooled by this guy:
Musk said, “I also want to make Twitter better than ever by … authenticating all humans.”
https://finance.yahoo.com/news/elon-musk-wants-authenticate-every-200308848.html
I’m not sure he meant what you think by that.
There’s a difference between collecting identifying information about a person, and determining that a person isn’t a ‘bot’. And as the article suggests, for most people it probably WILL boil down to something as simple as fulfilling a ‘captcha’.