an unbiased opinion is not an oxymoron. here's why.
there is knowledge and there is opinion.
if there is evidence and no pre judgment. having experiences and then having an opinion as a result of an experience is not bias.
example: if i don't like a food, never having eaten it, it's a biased opinion. if i have eaten a food 10 times and don't like it, it is hardly biased.
if i look at an amp and don't like it before listening to it, it's a biased opinion.
if i listen to an amp, in the context of a stereo system, 50 times and then don't like it, it is an opinion based upon some evidence. that's hardly biased.
there is knowledge and there is opinion.
if there is evidence and no pre judgment. having experiences and then having an opinion as a result of an experience is not bias.
example: if i don't like a food, never having eaten it, it's a biased opinion. if i have eaten a food 10 times and don't like it, it is hardly biased.
if i look at an amp and don't like it before listening to it, it's a biased opinion.
if i listen to an amp, in the context of a stereo system, 50 times and then don't like it, it is an opinion based upon some evidence. that's hardly biased.