system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is walking up a hill backwards easier than walking up a hill forwards or sideways?
gpt
It is not "easier." However, it may feel better because you are giving the muscles you normally use to walk up a slope a rest.

You are going to expend the same amount of energy either way.

It is mostly psychological. But you are using different muscles so if they are in shape, the muscles you use to walk forward appreciate not having to be used at the time.