Because things build on each other -- For tens of thousands of years humans had slow to no progress. then, BAM - agriculture and things moved, slowly accelerating over centuries. This increased speed during the industrial eroa and went to light speed recently -- with communication -- smart people people used to earlier congregate in cities -- that's still important as great ideas come from building on other ideas and talking with people
Interesting thanks.
I guess the ideas were there. Humans knew for a long time that there was SOME way to fly, they just didn’t know how to do it.
and there were predictions of motorized transportation long before it happened.
interesting topic.