Yes, that's right. How do I know that what I see as a circle, does not look to you as I see a square(alright, that's a bad explanation, but anyway).

How much do perceptions influence the world? I love that question, because you can never really answer it. How much do perceptions differ between people, and, what happens when your brain "completes" things automatically, such as letters and words.

It's interesting to think about whether I view something very differently from you, because it doesn't change how we think about the world itself....