We’re prone to believing what we want to believe, instead of what is actually true. And we’re prone to believing what seems true. To overcome that, we need to hold ourselves more accountable.

The way to do that is to learn a variety of subjects from a variety of sources. And to try to disprove our own beliefs by seeking out dissenting views.

Some people never learn to do this. And those of us who do, will never be perfect, but we’re getting better.