has JD done any writing (books or posts) that would put him in a tech visionary realm? If so I'd like to see it. Otherwise not sure why he's answering these questions
Building society-changing products and startups doesn't count anymore? Twitter seems like a pretty big deal.
Contrast that to the clear pg-style "write like you talk" writing of Musk, who has bona fide visionary credentials:
https://www.tesla.com/blog/secret-tesla-motors-master-plan-j...