This sorta scratched my brain - Isn't more speed, at least partially, laziness driven? There's a grocery about 1.5 miles from my house, and I can and do walk it, but when I don't want to commit all that time, I jump on my bike. I don't feel like I spend more energy on that trip when biking vs walking, but I may. The driver there, for me, is lesser time commitment to the task.

Framed another way - Is laziness defined as only 'spending less energy on it', or could there also a time commitment component?