Andrés Max · Feb 19, 2026
How to Validate a Startup Idea in 2026 (The Old Playbook Is Dead)
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Every startup blog will tell you the same thing about idea validation: validate before you build. Do 20 customer interviews. Run surveys. Create a landing page. Collect email signups. Pre-sell before writing a line of code. 
 That playbook made sense in 2020. It doesn’t anymore — not for validating a startup idea, not for validating a business idea, not for validating software ideas of…
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