Even in politics, a null hypothesis will really help you from forming biased opinions, and I don't think enough people take that into account.
"X probably has zero effect on the outcome. Now, let's test that theory."
The Netherlands did that with traffic circles, then came up with data proving traffic circles were extremely good at reducing accidents, especially fatal ones, and then took political action, and it worked.
>It’s also possible to influence others in a positive direction, he said, by sharing evidence in a calm, respectful manner when faced with misperceptions.
I made a conscious decision about fifteen years ago to rid myself of my opinions and instead draw conclusions. To draw conclusions, I have to examine evidence, both supporting and contrary.
It has changed my life considerably, and I am happier, easier to be around, and much more relaxed about everything.
I still have my opinions and biases, but I'm now more likely to notice them and cause myself to stop and evaluate where the opinion and bias comes from. Sometimes, my conclusion runs contrary to the prior opinion.
It does bother me a tad when people I care about have passionate opinions when I know that they haven't seriously considered why they have them, but the change in me just lets it go. I don't try to change other peoples' opinions any more. If they want to know my position on a matter, I state it and explain how I drew that conclusion.
If the evidence I provide affects them in any way, that's their business, not mine.