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Stress-test a business idea before you quit your job

You've got an idea and a gut feeling it could work. Get it tested with the questions a hard-nosed friend would ask, the numbers that must add up and three cheap ways to test it this month.

Updated 17 Oct 2026

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The problem

Everyone around you is encouraging, which is lovely and useless. You need someone to poke the holes before you spend your savings.

The outcome

You've got an idea and a gut feeling it could work. Get it tested with the questions a hard-nosed friend would ask, the numbers that must add up and three cheap ways to test it this month.

The prompt · ChatGPT

Stress-test my business idea.

The idea: [what you'll sell]
Who'd buy it: [customer]
Why I think it'll work: [reasons]
Price and costs, roughly: [figures]
Competition: [who else does it]

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A short example

You've got an idea and a gut feeling it could work. Get it tested with the questions a hard-nosed friend would ask, the numbers that must add up and three cheap ways to test it this month.

1

You describe the idea, who'd buy it and why you think it'll work.

2

The assistant asks the hard questions about customers, price, competition and your time.

3

You get the weak spots, the numbers that must be true, a go/not-yet/no-go call and three cheap tests.

What happens

Use ChatGPT to stress-test a business idea before you quit your job

You've got an idea and a gut feeling it could work. Get it tested with the questions a hard-nosed friend would ask, the numbers that must add up and three cheap ways to test it this month.

Tools

Paste the prompt, fill the blanks, copy the draft.

  • ChatGPT — required. Drafts from the text you paste. Nothing is sent.