"I figure subjectivists are like religious people and objectivists are the scientists. There is no proof that a new cable, silver fuse, etc improves the sound, but they believe it does As @djones51 said, until you take vision out of any audio testing, there's going to be bias." - mr.skeptic
Scientists are objective? They're human and prone to the same biases as anyone, and in some cases more so with the hubris that science can prove everything. The fallability and inadequacy of man-made instrumentation is the weakest link of all. One day we'll train animals who have much keener hearing to choose our cables and components for us.