CB Insights has run the autopsy on hundreds of dead startups, and the same line keeps showing up. 42% died because there was no market need. They built something nobody wanted. Most solo founders skip validation. Not because they think it's stupid. Because the standard advice is either academic ("interview 100 customers") or vague ("just build an MVP and see"). Neither of those is something you can actually start on a Tuesday night after work. This article gives you a 7-step framework that fits in a weekend. Twelve hours, maybe sixteen if you're being thorough. By the end, you'll have a written verdict on your idea. Build, Wait, or Reject. With reasoning you can't quietly walk back two weeks later. What does it mean to validate a SaaS idea? Validating a SaaS idea means getting evidence (not intuition) that a defined audience has a specific painful problem, that current solutions fail them, and that they will pay for a better one.…