I think it is safe to assume that each of us has a individual perception of reality. that s/he believes to be true. I believe I do. Well … I just watched a TED presentation by Donald Hoffman, a Cognitive Scientist, and I am not sure anymore.:(
This 20-minute presentation might be too long for some to sit and watch but if you do, it will have a big impact on what you see and believe. He has quite a humorous way of presenting this scientifically complex topic.
Use the link below to watch this TED presentation.