You and a friend are opening a small café near a college in Pune. In a notebook, you write: How do we make this a success?
An hour later, the page has three lines. “Good coffee.” “Nice vibe.” “Instagram.”
Now flip the question. How would we ruin this café?
The pen starts moving. Open at 11 when classes start at 8. Charge ₹250 for a coffee, then offer a wobbly table and no plug point. Let the Wi-Fi die in exam week. Make people wait twenty minutes for a sandwich.
Ten minutes, a full page. Every line is a mistake you can now avoid.
What’s going on
This is inversion: instead of asking how to get what you want, you ask what would guarantee the opposite, and then you stay away from it.
The 19th-century German mathematician Carl Jacobi advised solving hard problems backwards: invert, always invert. Charlie Munger, Warren Buffett’s long-time partner, carried it into business. In a 1986 graduation speech, he skipped the advice on being happy and listed ways to guarantee a miserable life: be unreliable, ignore other people’s mistakes, give up after your first big setback.
He liked quoting a rustic: “I wish I knew where I was going to die, and then I’d never go there.”
Here’s the strange part. Most of us can list ways to fail far faster than ways to succeed. Inversion uses the question we’re better at.
Think of locking up before a trip
Before a family trip, nobody asks how to make it the perfect holiday. Someone walks through the house checking what could go wrong: the gas knob, the geyser, the back door, the milk delivery.
It’s just the last round before the auto arrives. Avoiding the disasters is most of the plan.
Where you’ll spot it
- Pre-mortems. Psychologist Gary Klein has teams imagine a project has already failed, then write down why. Those reasons are the risks to fix first.
- Exam prep. “How would I fail this paper?” Skip past papers, sleep at 3 a.m., leave the hardest chapter for the last night.
- Keeping customers. Ask what would make them leave: a slow app, hidden charges, a refund that takes a month. Fix those before adding anything new.
The catch
Inversion tells you what to avoid. It doesn’t tell you what to build. A café with no mistakes can still be a café nobody remembers. Clear the path first, then you still have to walk it.
How to use it
When a plan feels stuck:
- Write the goal: a café students love.
- Flip it: how would we make students hate it?
- List every honest answer.
- Turn each one into a rule: open at 8, sell the seat with the coffee, fix the Wi-Fi first.
Most good plans are a list of bad ideas, crossed out.
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