I'll just say your second link is a completely illogical response to my comment. Note, I'm not necessarily advocating barefoot running. I do run on my forefee

I'll just say your second link is a completely illogical response to my comment. Note, I'm not necessarily advocating barefoot running. I do run on my forefeet, so I run in Newtons, for now. Two things though: (1) Heel running is less efficient, results in higher impact forces and leads to more injuries than forefoot running. (2) The only reason most of us heel run is because we started running in sneakers from a young age. Again, your second link, did you even read it?