The document provides 10 lessons for starting companies during economic downturns: 1) Downturns don't make a difference for startups since funding is already difficult, and focusing will prevent noticing the downturn. 2) Downturns can be good as they force creativity and teaching efficiency. 3) Hiring and renting space should be avoided since partners and outsourcing are better, and work can be brought to people instead. 4) Funding will be scarce so time is better spent on traction than pursuing it.