††† (Actually this isn't all what comparative advantage is; comparative advantage says, if there's a market for widgets and a market for photos and you're better at widgets than photos and I'm better at photos than widgets, then I should do widgets and you should do photos, which is a subtly different idea, but the point stands either way.)
Surely this is supposed to be the other way around. If I'm better at photos than widgets, and you're better at widgets than photos, then I should do the photos and you should do the widgets ... right? Crazy pills?