Achieve Quote by Leslie Orgel
“There is no agreement on the extent to which metabolism could develop independently of a genetic material. In my opinion, there is no basis in known chemistry for the belief that long sequences of reactions can organize spontaneously -- and every reason to believe that they cannot. The problem of achieving sufficient specificity, whether in aqueous solution or on the surface of a mineral, is so severe that the chance of closing a cycle of reactions as complex as the reverse citric acid cycle, for example, is negligible.”
About This Quote
Source Scientific paper: "The Origin of Life: The Central Role of Metabolism", 1973
He argues that metabolism cannot arise spontaneously without genetic templates due to chemical specificity limits.
In simple terms: Metabolism likely needs genetic guidance.
Key Takeaway
Seek evidence before assuming spontaneous complexity.
Themes
science
origin of life
chemistry
Mood
skeptical
analytical
Type
theoretical
scientific
When to use this quote
- laboratory experiments
- theoretical modeling
- astrobiology
Key Concepts
self‑organization
specificity
biochemistry
Questions to Reflect On
- Can alternative pathways bypass genetic templates?
- What role do minerals play in early chemistry?
A Different Perspective
Current models may underestimate catalytic surfaces.
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