Well educated people who consume a lot of information tend to hold disproportionately extreme views. They're really good at seeking out information that confirms our priors and ignoring information that might run counter. One antidote to inflexible thinking is simply balance. In worlds where our network is well balanced, this system works extremely well.
There are a lot of barriers to changing your mind: ego, overconfidence, inertia — and cost. Politicians who flip-flop get mocked; family and friends who cross tribal borders are shunned. But shouldn’t we be encouraging people to change their minds? And how can we get better at it ourselves?