Unemployment is at historic lows. Inflation is receding. The stock market is approaching its all-time high. Gross domestic product is healthy. Household savings are near peak levels. There are more travelers passing through our airports than in 2019. Retail sales continue to grow. The restaurant industry is booming. Corporate profits remain strong. Wages are outpacing inflation. It seems like the economy’s doing pretty darn good, right? And yet according to the most recent monthly data from the National Federation of Independent Businesses … optimism among small business owners is at a 10-year low. Why? If there’s one thing I’ve learned...