a human riding a bicycle is the most efficient way to convert energy into movement
On certain terrain.
In a world where flat, smooth pavement is everywhere, yeah, bikes are absolutely amazing. But, if you’ve ever been mountain biking, you know that there are situations where walking is far more efficient than biking. And, mountain biking is normally done on trails. Truly riding off-road on terrain where nobody else has ever been is pretty tough, and I’d bet walking is often more efficient.
On certain terrain.
In a world where flat, smooth pavement is everywhere, yeah, bikes are absolutely amazing. But, if you’ve ever been mountain biking, you know that there are situations where walking is far more efficient than biking. And, mountain biking is normally done on trails. Truly riding off-road on terrain where nobody else has ever been is pretty tough, and I’d bet walking is often more efficient.