When was the last time you undid something? When you CTRL+Z an action, a routine or a habit?
The reverse of something can help us get a better understanding or a new perspective. Challenging tradition isn't an exercise in futility; it may very well be the activity we need to get a better handle on something or to come up with our next great idea.
What can you unplan? Can your team unmeet? Could you unsell a prospect, uninterview a job candidate, or undesign that website?
You don't need to undo every system or behavior, but if you're in a rut, the key to getting unstuck may be going back and untrying everything that keeps you in place.