Great post Steve. I don't know why people have such a hard time with this one. I think it's a great article.
I have noticed that the further along I grow away from the thinking of the "general public" the less possible it is to "prove" to them anything. Not because it's "unprovable" but because they don't want it to be "proven" to them. Meaning, the only way for them to get "proof" if they want it is to try to gather it themselves.
For example I used to think Psychics were BS at one point in my life. My exposure to them was limited to seeing that Cleo lady (or whatever her name) on TV and I thought it was a pile of crap. But, as I grew my spiritual understanding I saw the possibility that psychic phenomena COULD exist, but I still had no "proof" for myself, so I started looking into it. I got a reading from Erin, worked with a spiritual coach that has psychic abilities and then got a reading with a totally different psychic. The psychic I got a reading from knew stuff about my life nobody should know unless they do have psychic abilities OR perhaps work for the CIA and had my house tapped or something which I really doubt.
To me, that was "proof" enough. However, there is no way I can prove psychic phenoma to someone like my self 5 years ago by having a conversation with them. Maybe if I was psychic myself I could do it, but just talking about it...good luck. If they are really curious about it and are ready to accept a world where psychics exist, they'll seek out "proof" in their own way. Reminds me of The Matrix. Unfortunately nobody can be told about The Matrix, you have to see it for yourself.
I guess the summarized statement would be that the only "proof" you'll ever get in life is the "proof" you discover yourself from your own experience. Nobody else can really be trusted in a SR model.