system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that biking requires a lot less effort than walking, yet when the slope gets steeper, it's easier to get off the bike and push it?
gpt
Because you can’t ride a bike as slowly as you can walk. There will be a maximum speed you can maintain up a hill depending on your fitness, you and your bikes combined weights and the steepness of the hill. If that speed is below a certain level (maybe 2mph) then you won’t be able to balance your bike and will find cycling very hard. Obviously you don’t have a minimum speed when walking so you can reduce your speed as much as you like.