Man: Does it charge as you pedal?
Man: If you hook the motor to the battery it will charge itself.
Man: Surely there's a way.
Me: Google, 'charging efficiency'
Man: #confused look. #walks away.
Isn't funny how ignorant people are when it comes to understanding how the energy balance or power consumed to do particular tasks works. A lot of people have no idea how much energy it takes to perform particular tasks. It's not until they have to power things from something other than fossil fuel .
A couple that come to mind.
Ignorant person looks at Picture of futuristic electric concept car with a solar panel on top the size of a sun roof - moon roof. Ignorant person ..WOW it charges its self as you drive WOW you could drive all day . hmm(80w solar panel )
Ignorant Person visits off grid home WOW if the system powers that big 40' led tv why would you be concerned about your child using that little blow heater her bedroom. hmmm (60w vs 2400w)
The list goes on .....
Some people just don't get the physics of a lot of things. Most likely don't care to learn.