Karstan, Fell down a rabbit hole of Mike Burrows interviews and articles. For those who don't know him, he was a quirky bicycle designer. One of the world's most influential and innovative designers in the last 50+ years. (He sadly passed away from cancer last year.)
This article has some fantastic quotes. https://theradavist.com/britains-fastest-self-powered-human-mike-burrows/
Edit: repetitive wording