Yes, but she probably didn't really understand his explanation. Look, I get that some people are, from my point of view, obtuse at best. I've had people convinced that I had some affiliation that I didn't or that I added them to some mailing list that I didn't (and unable to comprehend that they could follow the unsubscribe link to get off it). But they're not necessarily idiots. I've provided enough technical support over the years to family (iPad is the best gift, for me, I gave ever) to appreciate that many otherwise bright people really just don't understand how this tech works.