Intelligence depends a lot on who your parents were. if all their tribe wayback had to be mart to survive the kids will be smarter. That garbled stuff is quite easy to read for me if I do it fast. I have no idea what that proves. I've always wished I were more intelligent than I am. Intelligence is just the ability to process inputs. They used to talk of "aptitudes" Skills and interest in certain areas. Now it's bad news to suggest some have more abilities than others but in athletics it's fairly obvious. Not so much in other abilities. Why? We used to GRADE students. That's not the fashion now, but it can be done. I went through heaps of specialised tests on the road to flying. Coordination, Reaction times , Hypoxia Baro and decompression tests. Middle ear balance function colour blindness glaucoma astigmatism. etc Nev