An upright bike puts the rider in much the same position as the user of a scale.
You can only put force equal to your body weight on a scale
You HAVE to be fucking trolling 😄
By your definition, the most/only effective method of riding a normal bicycle would be to simply jump up and down until you eventually reach your destination 😄
gravity limits the amount of force the upright rider can apply: any additional force doesn't go into the pedal; it goes into lifting the rider off the seat
..do you have any idea how a bicycle chain or equivalent works? Have you ever SEEN someone operate a bicycle?
I don't know if you're joking, under the influence of powerful hallucinogenic substances, or a secret fourth thing, but you're DEFINITELY not making sense regardless 😄