There’s no magic number of customer interviews — you’re done when new conversations stop surprising you. Here’s what the research actually says, why ‘5 users’ is misunderstood, and how to hit interview saturation faster with better questions.
Pre-selling collects real money for a product before you build it — the single strongest proof that demand is real. Here’s how to pre-sell ethically: the five methods, the exact ask, how to set a threshold, and how to handle refunds without ever selling vaporware.
A landing page smoke test lets you prove people will actually sign up or buy — before you build the product. Here’s how to set one up in an afternoon, how much traffic you need, what counts as a pass, and how to run it ethically without selling vaporware.
Reddit is the largest free library of unfiltered customer complaints on the internet — but posting your idea gets you downvoted and banned. Here’s how to validate a business idea on Reddit the right way: mine existing pain, read the rules, and test demand without pitching.
Liking your idea and paying for it are different worlds. Here are 5 concrete ways to test willingness to pay before you build — from the pricing-page click test to the Van Westendorp price questions — so you learn not just whether people will pay, but how much.
Smart people don’t sit on good ideas because they’re lazy — they sit on them because intelligence itself creates the brakes. Here’s the real psychology behind years of ‘someday,’ and the small first step that finally gets an idea moving.
Most failed businesses showed the warning signs before a single line of code was written. Here are 9 red flags that predict a business idea won’t work — and the 60-second test that confirms each one before you waste months building.
Most ideas die of slow validation, not bad validation. This hour-by-hour weekend sprint compresses interviews, a demand test, and a real commitment ask into 48 hours — so by Sunday night you have a verdict instead of a someday.
Most customer interviews produce polite lies. These 25 questions are built on one rule — ask about the past, not the future — so you learn what people have actually done and paid for before you build anything.
ChatGPT will tell you almost any idea is brilliant — that’s flattery, not validation. Use these 12 copy-paste prompts to turn ChatGPT into a research assistant and sparring partner instead of a yes-man.
