His top 5 from a much longer and more impressive list from Professor Perry at Carpe Diem:
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. In 1949, Popular Mechanics magazine made the bold prediction that someday a computer could weigh less than 1 ton. I wrote this sentence on an iPad that weighs 0.73 pounds.
3. The average American now retires at age 62. One hundred years ago, the average American died at age 51. Enjoy your golden years — your ancestors didn’t get any of them.
4. Despite a surge in airline travel, there were half as many fatal plane accidents in 2012 than there were in 1960, according to the Aviation Safety Network.
5. People worry that the U.S. economy will end up stagnant like Japan’s. Next time you hear that, remember that unemployment in Japan hasn’t been above 5.6% in the past 25 years, its government corruption ranking has consistently improved, incomes per capita adjusted for purchasing power have grown at a decent rate, and life expectancy has risen by nearly five years. I can think of worse scenarios.