How to validate a business idea before you build
Most ideas don't fail because the product was bad. They fail because nobody wanted it badly enough to pay. Validation is the work of finding that out before you spend months building.
Start with the buyer, not the idea
Name one specific person who has this problem this week. What do they do about it today? If the honest answer is "nothing" or "a spreadsheet they're fine with", the demand is weak — no feature list will fix that.
Look for existing spend
The strongest demand signal is money already moving. Are people paying for a worse tool, a freelancer, or a manual workaround? Replacing a budget is far easier than creating one.
Talk to ten people before you build
Not a survey — conversations. Ask what they did the last time the problem came up, not whether they'd "use an app". Past behavior predicts; hypotheticals flatter.
Set a kill line
Decide in advance what result means stop. "If fewer than 3 of 10 would pre-pay, I change the wedge." A pre-committed threshold beats motivated reasoning later.
Then build the smallest thing that tests it
A landing page, a concierge MVP, a waitlist with a deposit. The goal isn't to launch — it's to get a real yes or no as cheaply as possible.
Validation isn't a phase you finish. It's a habit that keeps you honest about whether you're building something people will actually buy.