Galton's bubble

Galton's observation that eminent people in society come from a small number of different families. His theory of intelligence being hereditary is debunked from his own observation, emphasizing "different" families. These families are "different" families would need to have similar hereditary information in order to have this intelligent gene. This wouldn't be likely since they are different families. Galton also failed to take into account socioeconomic status and environment. Potentially, these eminent people of society coming from a small number of families because only a small number of families have superior health. To test Galton's theory, he would have to remove a person from an eminent family, altering their environment, and observing how the contribute to society. Additionally, his definition of an "eminent person of society" is subjective. An eminent person of society can be compassionate, wealthy, athletic, intelligent, talented, creative etc. Lastly, Galton observed his own society, not many nor the world as a whole. Therefore, with such a small sample, his observation cannot translate into a valid theory because his evident is not suffiencent nor logical.