Perception is not reality

I believe perception is just that - perception.

We have the ability to change a person's perception be helping them see things differently. We can do this by providing better or more information that may help the other person see something from our (or a different) perspective.

I agree that there can be different versions of the same reality, but don't believe that you can't change perceptions.

A classic example is in the court room, where jurors may have different perceptions of an event, and as they are supplied with information, their perceptions can change so a decision can be made.