If You Know Nothing About Startups: A Startup Guide for Technical People

If you have a technical background, you will find that 70% of real startup problems have nothing to do with code. The product is only step one. After that come sales, communication, cash flow, debt, cofounders, and timing.

May 9, 2026 · 16 min · David Zhang

Why 'It's Not Good Enough to Charge For' Is a Death Sentence for Your Business

A former colleague built a free product for two years — 3,000 users, zero revenue. After getting laid off, he finally added a $9/month subscription. He got more useful feedback in the first month than in the previous two years combined. The product didn’t need to be good before he charged. Charging is what made it good.

April 15, 2026 · 7 min · David Zhang

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