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validation·2026-02-12· 6 min

How to Validate a Business Idea in 7 Days (Without Spending $10K)

A founder's playbook for proving an idea has paying demand before you write a line of code or sign a lease.

Most founders waste 9 months building before they validate. Here's the 7-day framework we wish we'd had earlier.

Day 1 — Write the one-sentence problem. Not the solution. The problem. Who has it, how often, and what does it cost them today?

Day 2-3 — Run 10 customer interviews. No pitch. Just questions: "Walk me through the last time you ran into this." If nobody says "yes, this is a real pain," kill the idea.

Day 4 — Build the smallest possible offer. A landing page, a one-page PDF, a $5 Google Ad sending people to a Calendly. The goal is to test demand, not perfection.

Day 5-6 — Get 3 pre-orders. Money on the table — not "interested" emails. If people won't pre-pay, they won't pay later.

Day 7 — Decide. Pivot, persevere, or pause. The signal is in the numbers.

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