Avocado's Number wrote:
I wouldn't go so far as to say that either sentence written by "Joe Biden's Threshold Pace" ("You run . . . " and "It's so arbitrary . . . ") is especially confusing (though they certainly are unnecessarily confusing for intelligent readers). They were both simply written by an idiot.
What an unnecessary rant. It was perfectly clear that what he was saying was essentially "If you're running 5K, it makes more sense to think about your splits in terms of kilometers instead of miles." He wasn't mean-spirited about it. He didn't call anyone an idiot. He just expressed his opinion.