> It is remarkable how quickly we went from rudimentary powered flight to the moon.
I never got these kinds of statements. What on earth are you comparing us to? Somehow people who make the above statement never remark how slow it was moving from the development of agriculture to being sedentary, for instance.
I never got these kinds of statements. What on earth are you comparing us to? Somehow people who make the above statement never remark how slow it was moving from the development of agriculture to being sedentary, for instance.