How to Validate a Business Idea in 7 Days
A structured sprint to prove (or kill) your concept before investing.
“If your idea can't survive seven days of real-world pressure, it won't survive seven years of competition.”
The Insight
Most founders spend twelve months building before they ever hear a customer say the word 'yes'. That's the fatal inversion. You don't need a year — you need a week, and you need the courage to let the market tell you the truth.
01
Day 1–2 — Write the One-Sentence Bet
Before you talk to anyone, write a single sentence your idea is betting on: 'I believe [specific customer] is struggling with [specific pain] and would pay [rough price] to make it go away.' If you can't write that sentence, you don't have an idea — you have a vibe. Pin it to the wall. Every conversation this week either strengthens it or kills it.
02
Day 3–5 — Have 15 Real Conversations
Not surveys. Not LinkedIn polls. Fifteen voice calls or in-person chats with people who match your target customer. Your job is not to pitch — it's to shut up and listen. Ask about their last week, the last time the pain bit them, what they tried, what they paid, what broke. The pattern you're hunting is not enthusiasm — it's frustration.
03
Day 6–7 — Make the Pre-Sell Offer
Reach out to the three most frustrated people from your conversations. Offer them a solution — a manual service, a concierge version, a mock-up, anything — and ask for money. Real money. Even £100 proves more than 100 'great idea!' comments. If no one pays, you don't have a business yet. You have a hypothesis that hasn't been disproven. Either is useful.
The Takeaway
Seven days is not enough to build anything real. It is exactly enough to find out whether the thing you're about to build is real. Do the sprint. Respect the signal.
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