>Life is certainly going to be more difficult, more dangerous, and probably less fulfilling for someone with an IQ of 85 than it will be for someone with an IQ of 110 or 135.

I agree about dangerous and difficult[1]. But why "less fulfilling"? That's a risky comment to make because we've seen, as one extreme example, doctors place people with learning disability[2] on Do Not Resuscitate orders without the knowledge or permission of the patient or their relatives.

[1] Living in Fear, a report about bullying, from the charity MENCAP who campaign for people with LD. https://www.mencap.org.uk/sites/default/files/documents/2009...

[2] UK usage of LD.

>Because most people of above-average intelligence go through life on the normal path, they just do it faster or better.

More intelligent people may be less likely to learn how to work hard as a child. They learn that life is easy, and you can succeed without trying. When they get to something hard enough to require trying, they think they aren't smart enough to do it.