@GHOST phil,
Here Ghost, let me give you some hints. Suppose I have a theory to explain why human life originated on earth.
I could hypothesize that, prior to our existence, there was a human-like civilization that sought to make earth its home. Let's call them the Lord. I could also hypothesize that the Lord had technology to manipulate the environment, as well as engineer different species of life. I could also say that the Lord could only breathe methane. And finally, I could hypothesize that the Lord preferred the interior open space within the earth, because, among other things, it made travel and work much easier.
My conclusion would be that the Lord created humans and plants to become part of an autonomous, three-way, symbiotic relationship. The plants were designed to take carbon dioxide and produce oxygen, the humans were designed to take oxygen and produce methane, in simple terms. And, the Lord had been originally created to take methane and produce petroleum.
Now, I have a working theory, because there is evidence to support all of this. Do I need to prove how/why the Lord got here? No, because it is beyond the scope of my argument (theory). Do I need to know how life itself originated? Nope. We can already agree that life exists. How it happened is moot. Do I need to explain how we got here? No, my theory intends to explain
why we are here. Of course, scrutinizing this theory may lead to reasoning for an explanation of
how we got here. But, as you may agree,
how is not nearly as important as
why.
How I support my hypotheses is relevant, though.
So, I could say that the Lord looks similar to us because there is a book that has been published throughout the world that is said to be dictated by the Lord. This book clearly states that we look like the Lord...human-like.
I can support the claim that the Lord has the technology to manipulate the environment and genetically engineer new species, by observing the fact that humans already possess that ability. It isn't a stretch of the mind to assume that the engineer possesses at least as much technology as the engineered, at all times. Note that I do not need to explain how self-replicating lifeforms came about. All we need to know is that they indeed exist.
I could use the fact that we need a combustible molecule (Oxygen) to survive, as a way to support the idea that the Lord also needs a combustible molecule (Methane) to survive. It's simply an indication.
And finally, I could support the claim that the Lord lives in the interior of the hollow earth, by stating that the laws of physics dictate that spinning objects tend to be hollow (hurricanes, asteroid belts, etc). I don't need to explain
why this is covered up by our govt/military/media complex, because that's a whole other discussion. It does follow that I would be relying on such a cover-up to support my theory, however. But, it's not very difficult to show that agencies like the government have covered things up in the past. (Take the JFK mess, for example.)
See what I'm getting at?