Questions on The Replicators

Many people who saw me holding this book The Selfish Genes told me that it was the one of the best works they have ever read. Excited to read it, I started off with the second chapter The Replicators in class. In all honesty, I was disappointed. I felt like I was reading a biology textbook instead and probably didn’t understand half of the things Dawkins was trying to explain to us. However, here is a short summary of what I understood from this chapter:

Dawkins starts off with “In the beginning was simplicity” (pg 12). He starts explaining about the emergence of life and the evolutionary stages that occurred afterwards. I’m no biologist and although you don’t have to be a biologist to understand his work, I didn’t understand any of the first part he said until I got to the “primeval soup” part. The only thing I know is that he 100% supports Darwin’s theory of evolution. The primeval soup, which he didn’t explain too well so I had to look it up on Wikipedia later, is some type of ocean that contains a lot of chemicals or molecules (carbon, oxygen, nitrogen, hydrogen, etc). So in other words, life started from a chemical reaction that occurred inside that ocean. There were several chemical reactions, which soon left from one simple molecule to a very complex one. What I grasped from this was that there was a sudden transition from a non-life (or inorganic substance) to an actual living thing. Is this even possible? Obviously, one of those molecules was the DNA – also known as the Replicator. The name pretty much says it all. Replicators have an ability to produce copies of themselves; therefore, they soon started dominating the primeval soup because they start combining with other molecules. How did these replicating molecules lead to the creation of complex life? Well, they didn’t just stay as molecular kings but steadily became very complex through evolution. It was able to build bodies for protection – a wall of protein around itself. These bodies are what he calls “survival machines” in which when the replicator grew more complex, so did their survival machines. I’m not exactly sure how this happened, but we, humans, happen to be these survival machines.

This chapter left me with numerous questions that I probably need clarification on:

1)   Why exactly is the title of this book called “The Selfish Gene?” Is he claiming that genes are selfish?

2)   Do these primitive molecules exist today? Where are they now?

3)   I don’t understand if this primeval soup/ocean thing is a theory of Dawkins or it’s actually a fact in science, but if it was realm then…when did the ocean stop brewing up all these possible chemical reactions? When did this ocean go away? Clearly, looking at our world right now, such ocean doesn’t exist anymore.

4)   If believing what Dawkins said, “there is a tendency towards stability” – then why exactly is there such a variety of survival machines today? If it was so stable, then why didn’t one stable form occur and quickly become the norm?

A depiction of the primeval soup