I don’t know if this is a well known theory or not, but the basis is that it’s impossible for someone to be unbiased, even if they say they aren’t. People are subconsciously biased to a degree, so it’s impossible to be truly unbiased.
I doubt this has any substance, but I thought it was an interesting thought experiment.
This is interesting to think about. In a scenario with options A or B, where I know nothing about either option, I suppose I would lean more towards A despite there being no reason to do so.
In the absence of other biases, I think our brain is kind of by design expected to produce some or you wouldn’t be able to make decisions. E.g. a fork in the road goes left and right, maybe the right path has a slightly nicer looking tree along it so you pick that one even though it bares no relevance to the quality of the path.