Well if you are a Believer in JW doctrine humans only been around for 6000 years. The flood was 4600 years ago and before that they lived for several hundred years. So if you believe that then they would have been very very advanced after say 700 years of experience on earth.
Im not sure what I believe anymore, JW could be correct in believing what the Bible says but plenty of people put up a good case that humans were on the earth longer than 6000yrs.
there is no absolute hard proof either way.
Just the same there is no absolute proof the Bible is not just another book written by men who believed the earth was a flat circle with nothing under the North Pole.
that is exactly what that verse in Job says the northern sky has empty space under it. Well this is fundamentally not true it’s the South Pole that has empty space underneath it