Have you ever thought about a world where there is no friction? All your movement would have to be mechanical, people would develop to have a little hooks everywhere on their body, your home would be full of hooks and ways to provide movement.
Now, in our world, do you know the feeling when you are standing on top of a mountain and you know if you make a step that would kill you?
In frictionless world you would have the same feeling when looking at a large flat slightly sloped surface.
Stay Weird.