Another possible explanation is that she is intelligent and motivated and you are an asshole.
It's an amazing feat, and she clearly has much more aptitude (and dedication) for the skills than I do. I applaud what she's done. But I'm hard-pressed to believe she started with a blank slate, and I wouldn't want any true beginner to believe that either. I'm not saying that she knew even one programming language before starting, or that she had any sort of expertise whatsoever. But a rudimentary understanding of some key terms and concepts? Seems plausible-to-likely.
I don't think that diminishes the work in any way whatsoever. The work and the effort are amazing.