Having met Alex and chatted with him over dinner a couple weeks ago, I'd say he does NOT see himself as a troublemaker, he just wants to DO (and DOES) a lot of stuff. I'd normally advise everyone to at least try a year of college before giving up on studies altogether, but if you are going to drop out during high school, please do it with the passion, energy and focus of this guy.
Funny that the US immigration system actively repels the misfits of this kind (dropoffs). If you don't have MS degree, good luck getting the green card (it takes many years vs. 1 year or less for MS). I believe this will be Alex's problem too (he's British, right?).
I recall him mentioning he's on an O-1 Visa. I assume having a published book, many other projects presented as technical publications, and lots of high profile people ready to vouch for his talent, helped overcome his lack of academic qualifications.
O-1 is a work visa, and it's temporary. If he's here to stay, then he needs a green card. O-1 in green card world is called EB-1 (National Interest) and it's a PAIN to prove. EB-2 (Advanced degree, essentially an MS) is much easier, any immigration lawyer can do it for you for a few grand and if they're quick to submit you can have your GC in 9-10 months.
