The 5-minute exercise that saved me 6 months Last week I had a business idea. D2C flower dropshipping. 20 tulips, fast shipping, great margins on paper. I was ready to build. A friend said: "Premortem it first." I spent 5 minutes imagining it already failed 6 months from now. The results: ❌ Cold chain logistics kills the margin ❌ VAT + EORI across EU countries eats the rest ❌ Return rate on perishables is uninsurable ❌ Even established players can't make online flowers work Verdict: Don't build. 5 minutes vs 6 months of learned lessons. That's the value of a Pre-Mortem. What's a Pre-Mortem? Instead of asking "will this work?" → imagine it already failed and explain why . Gary Klein published it in Harvard Business Review (2007).…