actually Davic IQ increases by one or two points every year, so you are incorrect in saying that.

http://www.timesonline.co.uk/tol/news/uk/article2677098.ece

Actually contrary to your stupidity and according to all award winning geneticists IQ is inherited not environmentally effected, if you actually read some books on the topic you would know that people’s IQ can be found as soon as 3 years of age, and this number remains the same throughout their life no matter what they do (unless they get brain damage, then IQ can be lowered) Studies support this in cases of adopted kids raised by different families, their IQ still remains the similar to that of their natural parents, not adoptive ones.