This past fall, a younger rider often passed me on a slight uphill. He seemed to be pedalling effortlessly and was sitting upright. I thought to myself "Jeez, I'm getting old and losing strength." I felt depressed for a couple of days until I saw he was riding an e-bike. He was a commuter so I guess it makes sensse for him to get to work on an e-bike. I'd rather share the road with people on electric bikes than SUVs.
I rather enjoy the effort of riding unassisted, and the present wisdom is that it is good for me, but sometimes I think to myself wouldn't it be nice to be able to recapture some of the energy that is dissipated and lost when braking. or in other words a regenerative braking system. I've heard rumors that they exist for bikes.