> how a hill appears steeper to us if we have a heavy backpack on!
I've reverse hacked this: When I'm tired and need to walk up a hill, I look straight down at the ground such that it appears horizontal, this makes it easier to walk.
Come to think of it, that's kinda sorta what I do to! Stare at the ground right ahead and just plow ahead. I always put it down to just saying well, doesn't really matter what's further ahead too much, just follow the path and we'll get there eventually. I like the idea of it as a reverse hack though. Gotta look up occasionally to enjoy/watch out for stuff though.
I've reverse hacked this: When I'm tired and need to walk up a hill, I look straight down at the ground such that it appears horizontal, this makes it easier to walk.