What is your top 5 majors in terms of difficulty

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<p>Im talking about global intelligence " g factor" as proposed by Charles Spearman. And about nature vs nurture, it has been proven in studies that nature approaches ~80% of intelligence as one reaches adulthood. Once your an adult, higher iq people tend to seek out intellectually stimulating environments. It is known sibling iqs are closes at an early age when parental influence is shaping their environments. But once they seek out on their own it diverges. Also, Im talking about people grown up with proper nutrition such as your typical middle class americans. Not starving people in Africa. There are always extreme cases. </p>

<p>I don’t understand, why is this such a difficult concept to believe. People(more women than men) want to believe all of society is equal and social programs can solve all the inequality in the world. </p>

<p>Anyways back to the topic. I don’t want the topic to diverge. </p>

<p>What majors are difficult intellectully?</p>

<p><a href=“http://www.psych.utoronto.ca/~reingold/courses/intelligence/cache/1198gottfred.html[/url]”>http://www.psych.utoronto.ca/~reingold/courses/intelligence/cache/1198gottfred.html&lt;/a&gt;&lt;/p&gt;