Most likely because it seems to be a phenotype that does not reproduce itself. None of Von Neumann’s children had kids if I recall correctly. This environment d

Most likely because it seems to be a phenotype that does not reproduce itself. None of Von Neumann’s children had kids if I recall correctly. This environment does not select for IQ past a certain point; this does not imply we cannot engineer people to be more intelligent any more than it implies we cannot engineer people to be dwarfs.