it's fascinating to create something seeped in research, even naming a shoe after research metrics, and yet still be in the dark about how the mechanics actually work.

mostly due to how difficult it is to measure energy through out aspects of our bodies.

and yet, glossed over (though called out) are the massive optimizations we have made in diet, training (both physical and mental). the notion of having pacers and cars and other in-race support to push our bodies beyond the limits gives ways to pushing the limits again and again.