What are the Weaknesses in Human Intelligence?

Remember that humans evolved to survive in the jungle and on the plains of Africa.  Although some
subsequent evolution has occurred and although some of this intelligence is logical in nature, much of
human intelligence is social and survival oriented.

Steve Pavlina has come interesting observations as to the weaknesses of human intelligence:

Again, watch out what you say to humans.  There is logical reality and then there is political reality and
humans are often more interested in political reality than objective truth.