Some scientists may find the Darwinian Polymer Model troubling at first. As they read along, one question they will have is this:
Why do you say that, and how can you know it is true?
After all, there is little direct evidence for anything proposed in the DPM. The direct evidence has vanished over billions of years of evolution. Only hints of the past remain in the modern living things we see today.
Mostly, the Darwinian Polymer Model is based on the following assumption:
Evolution and chemistry direct the path to life at all times.
The DPM is meant to provide a simple, chemically-reasonable path for the origin of Earthly life. Perhaps other paths will be developed in the future. Or, perhaps new evidence will further support the Darwinian Polymer Model. The DPM is expected to grow and change over time. The goal is to develop a path that is consistent with logic, chemistry, evolution, and our knowledge of the early Earth and modern life.
Because the DPM can be shown to be consistent (or not) with the available data and because it can be tested, the DPM is a reasonable scientific hypothesis.
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