What? I'm not sure why you invoke CS(by which I assume you mean Computer Science,) I wasn't refering to artificial general intelligence, which could be said to fall under the domain of CS.[1]
I was refering to the 'general intelligence' that is an attribute of human beings, what iq tests measure basically.[2][3]
It is a matter that has undergone much study since the early 20th century, and there is indeed agreement on what it is among those who study it.[4]
certainly not one that could be tested with any confidence.
Why so certain? It can indeed be tested and has been. Taking intelligence to mean 'ability to deal with complexity,' and taking something complex like say, life on earth, people with higher IQs on average make more money, and live longer. Not to say the amount of money one makes is wholly indicative of successful living of course, but it can be used as a rough proxy since it is something many people seek to do in the complex environment that is Earth and the Universe.
Also, I think the ability to 'live sucessfully' and to find out what doing so entails is an ability spread evenly throughout the population.
[1]http://en.wikipedia.org/wiki/Artificial_general_intelligence
[2]http://en.wikipedia.org/wiki/G_factor_(psychometrics)
[3]http://en.wikipedia.org/wiki/Intelligence_quotient
[4]http://en.wikipedia.org/wiki/Mainstream_Science_on_Intellige...