I have a theory about Tunisian television advertising, and like all properly interesting theories, it came to me sideways, through a circuitous route involving pregnant women, Finnish birds, and Renaissance Florence. For the longest time, I watched Tunisian ads with a nagging sense that something was off—rather like when you meet someone at a party and can't quite place why they seem familiar, or when you taste a dish and know something's missing before you can articulate what. The psychologist Marie-Louise von Franz wrote about this phenomenon: your mind detecting an implicit pattern before you have the words to make it explicit. A woman knows she's pregnant with an idea, she noted, before she can articulate it. The unconscious knows before consciousness can explain. You feel the presence of something forming, growing, demanding attention—but you can't yet name it. I knew these ads lacked tension and clarity, but I felt and this is the crucial bit that it was more th...