It's pretty mind blowing to think that in just over 100 years we went from having something like the Wright Bros. airplane to having a plane like the F-35! Now THAT is a revolutionary progression.
There were less than 66 years from Kitty Hawk to Tranquility Base.
Apollo 16 moonwalker Charlie Duke said his father could hardly believe that he had walked on the moon, but his young son thought it wasn't a big deal.