How much difference could Sabastian Sawe-style “super shoes” make to your marathon time? We examine the technology, on “Babbage” https://www.economist.com/podcasts/2026/04/29/why-runners-are-getting-faster?taid=69f3b973563ff900012ae573&utm_campaign=trueanthem&utm_medium=social&utm_source=voante
