Like audio is a mental excercise? Where is there truth in that? Any audiophile worth his salt knows that it is an observational excercise. Audiophiles can be fooled by their senses into thinking they hear something that isn't actually present, but the notion that they are 'always' fooled is the thing that is truly absurd, not to mention unbecoming in its presentation.
The problem 'really' is what sceptics presume to 'know', without proper investigation.
The problem 'really' is what sceptics presume to 'know', without proper investigation.