system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How does leverage not defy conservation of energy?

I can't get my head around how applying force at the end of a longer lever makes that force greater. Where is that extra force coming from? 

It just seems impossible that a small force can lift a heavy boulder, and I don't see why *length* is a relevant consideration.
gpt
You, a human being, most likely cannot move 1,000 pounds of dirt all at once. However, you can probably move five pounds of dirt two hundred times. You therefore could move 1,000 pounds of dirt (but not all at once) because you spread the work over a longer period by moving five pounds of dirt at a time.

That's all that a lever does. It allows you to do less work at any one given time to accomplish the same goal over a longer time frame/distance.