[Retra]

It's not 'nearly' impossible; it is impossible. It's impossible to make any decisions without bias. The important thing is knowing what your biases are and knowing what decisions you're actually making and the effects they actually have.

People like to imagine that they don't actually make policy decisions, then they have no influence on the world. That's really not the case, and the best course of action is to be aware of the influence you have, and make sure your biases aren't influencing things in a negative way.