Sorry, but I see no boundary between the one and the other. How you feel about what you perceive is a learned response you are as much a stone in front of you as you are anything else. The concept of personal reality is present up to a point but only a small point otherwise we jump into the mysterious différance a la recondite interpretations of Derrida in the 80’s and beyond. Personal reality is ???? Psychosis? A ketamine experience. Sure there is bias and aggregate of personal experiences which plays with signifier and signified. But, it is pretty clear we can communicate so we aren’t wired that differently. Having an aphasia would be different.
good comment! Let's not forget we create our own reality. It's a collective offspring we have to constantly nurture. Saying we owe it nothing is like creating a child and saying abandonment is an option.