Rather than focusing on having a brilliant day, why not consider what a crap day would look like and avoid that? It will likely be easier and will achieve similar results. Or, as Charles Munger pointed out: "It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent." Inversion involves looking at a problem or decision from the opposite point of view so, for example, rather than focusing on achieving success, Inversion encourages you to consider how to avoid failure.  MUNGER ON INVERSION.  Munger, a big fan of Inversion, explains it well: “Invert, always invert: Turn a situation or problem upside down. Look at it backwards. What happens if all our plans go wrong? Where don’t we want to go, and how do you get there? "Instead of looking for success, make a list of how to fail instead–through sloth, envy, resentment, self-pity, entitlement, all the mental habits of self-defeat. Avoid these qualities and you will succeed. Tell me where I’m going to die so I don’t go there.” REFRAMING ANYTHING.  Inversion rates as one of our most versatile and adaptable models, because it can be applied to almost anything. For example:  Want to improve collaboration? Ask 'how might we prevent or hinder collaboration?' and avoid that.  Want to increase sales? Ask 'how might we lower our sales as fast as possible?' and mitigate against that.  Want project success? Use a 'pre-mortem' to ask 'what might go wrong or prevent this project from succeeding?' and then mitigate against that. Want to progress in your career? Ask 'what is holding me back?' to focus your energy.  You get the idea, the point is to start with your goal, apply Inversion, and then invest your energy in avoiding your blockers or potential pitfalls to achieve progress.  IN YOUR LATTICEWORK.  Inversion is a powerful mental model that can be used in countless contexts to challenge the status quo and interrupt bias. It is also can add a new perspective when combined with a multitude of other Mental Models. Apply Inversion to help your Framestorming process and challenge your assumptions as part of First Principle Thinking. Also, combine it with techniques such as Rolestorming to help provide new perspectives on a problem.   Use it to help interrupt and prevent falling victim to the Confirmation Heuristic by asking 'what would I see if I was wrong?'; Consider outlandish 'what ifs' as part of Scenario Planning to identify potential Black Swan Events; or apply it to the Pareto Principle to identify 'how you could best waste your time', then avoid that. There are countless other possible combinations — see the Playbook below for more examples.