Originally Posted by cel4145
"Unbiased opinion" is some ways a misnomer.
You seem to be underestimating the problem. I would say that "unbiased opinon" is an oxymoron. Bias is so much a part of the human experience that even "unbiased fact" can be doubtful.
One might not be subject to a particular bias which is under scrutiny and most relevant to a decision where an unbiased opinion is sought (in that sense it is unbiased), but it's still subjective, based on the sum of the experience of that individual, and thus subject to other biases that cannot be accounted for.
Bias is so much a part of the human experience that even just estimating which biases are stronger or weaker can be very challenging.
Saying that someone is not subject to a particular bias is very questionable, unless the experiment is structured so that every known or reasonably hypothesized bias is reduced to vanishing levels.
For example we invented procedures and equipment for doing audio DBTs fairly easily, only to be criticized on the grounds that we had introduced far more serious biases with those procedures and that equipment.
Once we started doing audio DBTs and got some visibility for them in the audiophile press, either coincidentally or as a result of them, audiophiles started becoming very vocal about alleged sonic colorations due to cables and switches and relays, which were inherent in the equipment we developed.
The bottom line is that hope springs eternal, and telling people that they have just bought a truckload of whole cloth is likely to be met with a lot of emotional resistance.