I don't laugh at people in the 1st century who may have thought the earth was flat. If I lived in that time period then that would probably be a rational outlook. I laugh at the people who still believe that today.
It's also not disturbing in the slightest that we are hopefully going to know a lot more about the universe in a thousand years time.
It's also not disturbing in the slightest that we are hopefully going to know a lot more about the universe in a thousand years time.