What can be done about bias and superstitious thinking?
I submit the only way to overcome bias and superstitious thinking is education.
People must be educated to learn that we all have biases. We all have blind spots that occur naturally in our perspective.
It's more than just education, though, that's only the first step. Once educated, one must be committed to the on-going effort of recognizing their own biases, and trying to see around them. It's so easy to allow intellectual laziness to take over, and to become comfortable with your biases instead of working hard to see around them.