Steve this was an excellent post.
And I love reading through the comments of the people who find proof essential, which is fine for them but not everyone. This is a subject I am particularly interested in and I recently made a video post on my blog directly related to this subject called
Objectives & Subjectivity: Reality is an Opinion. In the short video I look at how people’s views of reality are warped by their objectives (goals, motivations), thus making subjectivity.