You are walking along an unsurfaced road. A motorbike is coming towards you. You step out of the way towards the side of the road. The motorbike follows you. You both get annoyed and you have to step off the road entirely in order not to get run over.
“A bit rude!” you think.
“Why did he have to move to the smoothest part of the road?” thinks the motorcyclist.
Bottom Up Thinking 