FAI is only a problem because of AI. The imminence of the problem depends on where AI is now and how rapidly it is progressing. To know these things, one must know how AI (real, current and past AI, not future, hypothetical AI, still less speculative, magical AI) is done, and to know this in technical terms, not fluff.

I don't know how much your friend knows already, but perhaps a crash course in Russell and Norvig, plus technical papers on developments since then (i.e. Deep Learning) would be appropriate.