@timur,
Yes...the pragmatists argue that can be no operational distinction between "appearance" and "reality". The two terms may imply different perceptual states or stages, but that is as far as it can ever go.
There is an interesting term used by Merleau-Ponty in his studies of perception.
He uses the term "affordance" to described how we see "the world" as populated not with
neutral things but with
items of significance which
invite our potential interaction with them. Thus a tourist unknowing that he was straying onto a film set, might "falsely" experience affordances when observing the facades of a town. But a secondary state, which if discovered, he later might term "reality", might never occur and he would have been content with the "reality" of his first experience. And by extrapolation, there can be no limit to potential discoveries which modify affordances/appearances/realities.
)
