@Aedes,
Aedes;86434 wrote:I can show you brains without thought.
Can you show me thought without a brain?
If you mean you can show me a brain on a platter, I agree it's probably not thinking, since once you stop the blood supply, it dies.
But you know I can't show you a thought. And you also know that in the absence of thought, you can't show me anything.
My way of understanding reality is a set of contingent ideas. Fundamentally, it's similar to that described by the OP. I believe the world around me is dream like in character. It seems to have a history in the same way that within a dream, a history is assumed. History is essential to any meaning. If you had amnesia, you could look at your driver's license and see your name, but it wouldn't mean anything to you. Meaning depends on correlating the present to the past... even though by definition, the past is a figment of imagination... search the universe over and you'll never find it.
I didn't arrive at my mode of understanding through logic, though. As a small child I had the distinct impression that there was something behind everything: as if what I was seeing was a veil. I don't know where I got that idea, but I was absolutely convinced. During my teenage years, I was preoccupied with 'ultimate truth' which I defined as the world behind the veil. Partly because of exposure to philosophy, I came to believe that the world behind the veil is made of ideas.
As for the origin: the paradox is obvious. The dream character wonders what the origin of his world is. He tries to trace things back within his own framework. How could he guess that the origin of his world is not 'back in time' but in the present. His whole world is made of thought.
I wouldn't try to convince anyone that I'm right about the nature of reality. My way of thinking evolved out efforts to arrive at some cohesive outlook. It's necessary for me... to each his/her own. But at the same time I welcome criticism. I'm open to change.