1) This can't be discovered through an interview, nevermind an immigration process. It would just be increasing the entire pool of people who might qualify as "

1) This can't be discovered through an interview, nevermind an immigration process. It would just be increasing the entire pool of people who might qualify as "top talent" or "average" programmers. The author raised the point that 3rd world countries probably don't have as high a proportion in their general populace of skilled labour as the US.