Friday Open Thread: Is it the shoes?

Unless you’ve been trapped under something heavy, you’ve seen the news of Eliud Kipchoge’s historic run last weekend to break the 2-hour barrier in the marathon. Since then, observers from Ryan Hall to Amby Burfoot have called attention to the shoes he wore; as Burfoot writes today, “it appears that running, the original and most elemental of sports, now faces the same tradition vs. scientific innovation challenge that other sports have encountered.”

Are the limits of equipment being pushed too far? — Terrell

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