This one is interesting as well. I read about this in ‘Playing with Fire: The 1968 Election and the Transformation of American Politics.’ It talks about how three very intelligent people could be looking at the exact same thing and come to very different conclusions based on their level of personal interest and biases. They can be very smart, but also very wrong.
This is my understanding of people in general.
Check out Saigon, 1965 from Revisionist History on Amazon Music.