How Adidas won the super-shoe war

What was special about the shoes on the feet of the record-breaking runners at the recent London Marathon? Is the Met Gala an important design event, or just about money and celebrity? And why is a new addition to a 930-year-old French cathedral so controversial?   In this week's episode, Dezeen's design editor Jennifer Hahn and features editor Nat Barker plot a brief history of the race to create the first shoe capable of breaking the hallowed two-hour marathon barrier.   Then, they reflect on this year's Met Gala, and whether it has any relevance for design as a whole.   Finally, they discuss the response to Kengo Kuma's new entrance to the medieval Angers Cathedral.