Eliminating bias is a mu-goal. An unbiased electrical pin isn't a perfect signal; it's a floating input, passing along whatever radio flux slips through it. Our goal is always to seek out the right biases.
We can fool ourselves frequently. Nature cannot be fooled.
Homo sapiens have had access to nature for 160,000 years. We've spent a lot of time thinking we've folded nature when we had no right to. Why should I think now is any different?
My claim is we should bias towards believing things that match to reality. Seeking "unbias" is seeking ignorance.
It might be theoretically possible for people to inch toward objective reality, I've never seen it work in practice. It's a failed ideology and for some reason folks believe that this, the millionth time, it's going to work.
> The bias should be, for hard sciences, on the scientific method and evidence-based reasoning.
That is the opposite of bias.