Interesting conversation. There has been a huge revolution in astronomy, among other things, in my lifetime.
I was born in 1962, my father in 1924, his father in 1895. We three, whose lives overlapped, have witnessed things that prior generations could not have imagined. My great grandfather and all before him for 10, 20 generations or longer lived in times that did not change much from one life to another. An adult living in 1700 would not feel out of place were he suddenly dropped into 1800, drop him into 1900 and he would see some amazing changes (mainly as a result of the steam engine) but nothing too outlandish. But bring him to the year 2000, nothing would be as he knew it in 1700.
“Government has three primary functions. It should provide for military defense of the nation. It should enforce contracts between individuals. It should protect citizens from crimes against themselves or their property. When government-- in pursuit of good intentions tries to rearrange the economy, legislate morality, or help special interests, the cost come in inefficiency, lack of motivation, and loss of freedom. Government should be a referee, not an active player.” - Milton Friedman