First off, what some call psychic is just normal intuition.
The brain is amazing in it's ability to construct things from minimal information, for example when I was younger I could describe people I never met, if I was able to talk to someone who knew them. Face to face. By my early 30's I lost much of my talent, and now in my 40's I no longer can really do it like I once could.
I once described a toy (a stuffed dog) to my wife that she had as a kid without ever hearing her mention it...it's part of cold reading and I believe it's an unconscious action of the brain as an artist. As an artist, I think in 3d imagery and I know how faces go together... Artistic talent decreases with age...perhaps my artists brain was just really good at educated guesses with faces and things. Not supernatural, though.
When I was a child my mother would have me describe what she was drawing without looking at it in the 70's, at the time it was curious. Today it's less curious as I have half her DNA and must have had a similar way of looking at things...and it was never 100%. Again me and her are both artists, similar DNA and can be explained by similar thinking. Not supernatural it's just nature.
When some people look at a rock, they see a rock...I see dozens of potential sculptures within its form. When I go to build something, I often first build it within my minds eye. I can then rotate it and look at it at every angle as that's how an artists brain works. Perhaps all a "psychic" is someone good at paying attention and reconstructing the missing pieces.
It end's up making you very manipulative, as you can use it for other avenues of exploitation. It's how I made it, it certainly was not because of my own "hard work" but it's not supernatural. One man's psychic is another man's trained observer.
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"I don't care half so much about making money as I do about making my point, and coming out ahead."
"What do I care about law? Ain't I got the power?"
Cornelius Vanderbilt