Comment by pizza

And yet, the overall path of unconcealment of science and technological understanding definitely traces a line that goes from the Wright brothers to Vostok 1. There is no reason to think a person from the time of the Wright brothers would find it to be a simple one easily predicted by the methods of their times, but I doubt that no person who worked on Vostok 1 would say that their efforts were epochally unrelated to the efforts of the Wright brothers.