rosborne979 wrote: real life wrote:So, in essence, you assume the existence of an unknown replicating molecule for which there is absolutely NO evidence?
The contention that such a molecule existed is simply a logical deduction based on the evidence we have available. It's common for science to make deductions from evidence. And deduction is not the same thing as faith.
* We know that the raw chemicals required for at least some replicative molecules existed on the early earth.
Lets be generous. Depending on how 'raw' you are defining as 'raw chemicals' , one could say that ALL ingredients were here.
The problem is that as you go upladder, some of the compounds you need are inherently unstable, and even water will destroy them.
rosborne979 wrote:* We know that the conditions were very energetic (good for chemical reactions) and very varied.
As they are today. Lots of variety, constant changes
Which means also that chemical reactions can go both ways; and the likelihood of the type of molecule you need surviving in the open (whether in the mud or in the ocean or wherever) is nil.
rosborne979 wrote:* We know that at some point, simple DNA based life existed.
Yes of course.
rosborne979 wrote:* We know that DNA and RNA are too complex to have resulted from a non-replicative precursor.
Yes. Not good for your side.
rosborne979 wrote:* We know that Poofism is ruled out because we're doing science (not mythology)
You *know* the supernatural isn't possible because you only have the means to study the natural? Is that it?
That doesn't mean that the supernatural is impossible, ros. It means that science has limits. Accept it.
To a man with a hammer, everything looks like a nail, doesn't it?
rosborne979 wrote:* Therefor, some replicative molecule (probably many generations of them) must have formed after the raw chemical stage, and before DNA/RNA.
And you have NO evidence of these 'many generations'. NONE.
rosborne979 wrote:Do you have a different deduction to make from those facts?
Take note that some of these 'facts' are not facts at all. They are rosy assumptions.
rosborne979 wrote:Shapiro is proposing a transitional mechanism which gets us from raw chemicals to a replicative molecule. His is not describing how to get from the first replicator to RNA or DNA.
He is proposing how to get to a living organism without a replicative molecule because postulating an 'independent replicator' that leads to first life is a waste of time, and he's not wasting his thinking about it.