Stairs erase up and down whereas ropes and slides insist on them. Too many ropes and slides in public software today. Don’t try to decide beforehand where users want to be; make it possible for users to get to where they want to get to in plainly reliable ways, then invite them for a climb or a plunge.

And no, I’m not ‘anti-elevator’…ach…this metaphor is deteriorating rapidly in earths' atmosphere…