> Fascinating but it doesn't seem to prove anything besides we struggle to draw complex logos from memory therefore the complex logos of Starbucks and Footlocker are at the bottom and the simpler logos of Target and Ikea at the top.

I'm unconvinced. Of course complex logos are harder to draw, but it doesn't explain why so many people got extremely simple logos wrong, like Adidas' or Domino's, while comparatively harder logos got better scores, like Burger King's or 7-Eleven's!

I think there's something more at play than just logo complexity.