Originally Posted by Bostonian
... for many people, the level they reach in the occupational hierarchy is limited by IQ...

Or any of the following:

Competence
Experience
Age
Geography
Phase of the economic cycle
Contemporaneous fiscal policy
SES
Family environment
Presence of mentors
Level and field of education
Attractiveness
Who they know
Like-ability
Height
Interest
Enthusiasm

The list goes on...

I respectfully request that we not let this conversation devolve into a defence of the argument that life is a deterministic function of IQ, because that sort of reasoning does little justice to this forum and has limited basis in reality.

What is to give light must endure burning.