The bench halfway up the hill belongs to a different map than the road does.

Two people can use the same hill and be travelling on different maps. For the road, the hill is a gradient and a distance. For the person who needs to sit down partway, the hill is a series of places to stop, and the bench is not scenery but the thing that makes the journey possible. Neither map is wrong, and only one of them tends to get drawn.

Anyone with a say over a route, a building or an event can ask where the resting places are. Somewhere to sit, a step out of the flow, a point to catch up. Their presence decides who can take part.