Comment by embedding-shape

I feel like both moped and electric bike misses the mark of the initial analogy, so does tractor too. Because they're not able to get good results without someone putting in the work ("energy") at some higher part of the process. It's not "at the push of a button/twist of the wrist" like with electric bikes or mopeds, but being able to know where/how to push actually gets you reliable results. Like a bicycle.