I suppose you could technically say all of our perceptions of reality are wrong because, although to a degree the perceptions can be accurate, they can never be very precise (while still maintaining a high degree of accuracy, of course). However, for all intents and purposes, the accuracy and preciseness with which the healthy and sober human mind is capable of is more than useful enough for communication purposes. It's pretty silly to try and argue that all we perceive is real because no one experiences an objective reality because to do so means you completely missed the point and meaning of the words "real" and "reality". There would be no need for distinction if reality were the same thing as one's perception of reality.