My wife's grandfather was born in 1912. That was nine years after the Wright brothers made their first flight. He died in 2013. The man learned to use a computer when he was in his 80s. During his lifetime aviation went from flimsy planes that wouldn't make more than maybe 50 mph to man on the moon, super sonic transports, and space shuttles. Don't know the source of the quote but it has been said that technology has made more advances in the last 100 years than in all of humanity's previous history.