Everyone should be thankful for how far we've come. - Morgan Housel - Financials 1. U.S. life expectancy at birth was 39 years in 1800, 49 years in 1900, 68 years in 1950, and 79 years today. The average newborn today can expect to live an entire generation longer than his great-grandparents could. 2. A flu pandemic in 1918 infected 500 million people and killed as many as 100 million. In his book The Great Influenza, John Barry describes the illness as if "someone were hammering a wedge into your skull just behind the eyes, and body aches so intense...