In general, how rational do you think most people are?
Cognitive scientists, psychologists, and others have studies this for years. Of course, that's true of just about everything, so who cares? Well, in this case the interesting thing is that there exists a fairly large amount of pretty decent popular works on just how rational we are:
Ariely, D. (2008).
Predictably Irrational: The Hidden Forces That Shape Our Decisions. HarperCollins.
Ariely, D. (2010).
The Upside of Irrationality: The Unexpected Benefits of Defying Logic at Work and at Home.
Best, J. (2001).
Damned Lies And Statistics: Untangling Numbers From The Media, Politicians, And Activists. University of California Press.
Damer, E. T. (2009).
Attacking Faulty Reasoning: A Practical Guide to Fallacy-Free Arguments. Wadsworth Cengage Learning.
Gilovich, T. (1991).
How We Know What Isn't So: The Fallibility of Human Reason in Everyday Life. Simon & Schuster.
Gilovich, T., Griffin, D., & Kahneman, D. (Eds.). (2002).
Heuristics and Biases: The Psychology of Intuitive Judgment. Cambridge University Press.
Kahneman, D. (2011).
Thinking, Fast and Slow. Macmillan.
McRaney, D. (2011).
You Are Not So Smart: Why You Have Too Many Friends on Facebook, Why Your Memory Is Mostly Fiction, and 46 Other Ways You're Deluding Yourself. Penguin.
McRaney, D. (2013).
You Are Now Less Dumb: How to Conquer Mob Mentality, How to Buy Happiness, and All the Other Ways to Outsmart Yourself. Penguin.
Piattelli-Palmarini, M. (1994).
Inevitable Illusions: How Mistakes of Reason Rule Our Minds. Wiley.
Sutherland, S. (1992).
Irrationality. Pinter & Martin.
Logic doesn't come naturally to us (well, it does, but only in a very limited form). We see patterns that don't exist, infer causes without basis, make illogical inferences, etc., because often these "irrational" moves actually work and cut down on mental load as well as decision time. However, often enough our predilection towards illogical inference and irrational analysis are not shortcuts but problems.
Do you think the world would overall be a better place, a worse place, or about the same as it is, if people were generally more rational?
Can rationality be improved with education?
Yes to both.