Taleb provided no point other than a graph he made out of his own imagination. He also clearly hasn't read a fraction of the research on IQ. There was nothing to understand about his views on IQ, other than that they're bullshit.
I don't have time to keep going round in circles. If you want to know about IQ, follow the links to actual research provided in the thread. Also, use Google. If you're still unable to see the value of IQ, fine, just make your life easier by believing whatever Taleb tells you.