David, So the tons of evidence, which nobody disputes, that cognitive bias is a pervasive feature of human nature, is your evidence that millions of audiophiles reporting differences when listening to power cables, is due to bias. This is your opinion only, as opposed to actual listening experiences by many, and should not be confused with evidence. The existence of social science is not an argument against what individuals or groups experience when reviewing audio components. You seem to very specifically restrict this bias to power cables! I would say an observation, and forming a hypothesis, in this case a listening experience noting differences in system tonal balance with various power cables is one of the first steps that may lead to scientific discovery. I would say your argument borders on antiscience and is littered with personal opinion, rather than anything concrete. Us audiophiles don’t make blind statements, we are prepared to demonstrate in group settings, in other words the first steps of accepted scientific process. 