I think it's important to note that the author explains exactly how he is restricted (and it applies mostly to the professional/tech world), and I don't think t

I think it's important to note that the author explains exactly how he is restricted (and it applies mostly to the professional/tech world), and I don't think the experience would vary by person based on his examples. From the Iranians I know as well as other international students in general, what he has described is pretty common. Not Iranian myself though so haven't seen every detail up close and personal, and small sample size. I have never seen evidence or heard of experiences that suggest otherwise in the cases of his examples.