Hlafordlaes
Disorder of Kilopi
... Chemistry (Functional DNA/RNA/Proteins et al) are merely "The Medium" for conveying Information, much like Ink/Paper/Glue Molecules --- and just like them, they don't Author War and Peace/Technical Instruction Manuals or Blueprints....
I'll just take this head-on right here. Where is the 'information?' What in fact is going on in observable terms is a series of chemical reactions. 'Information' is a handy way of describing the functional results of self-perpetuating chemical systems that evolved on the Earth. Chemical reactions are the same thing as information transfer, or the other way around. Same thing, only one is a metaphor, the other a physical description.
Physical descriptions are what the basic science depends on. Functional descriptions are reserved for the behavior of the systems, i.e., what they do, and so may rely on metaphor to describe what is going on, such as in this case, language relating to encoding. Functional descriptions are therefore closer to the eye of the beholder, and add a greater level of interpretive understanding.
This is why applying your metaphor for artificially encoded systems was off. There is no actual message here, no obligatory senders or receivers; rather, there is a self-perpetuating and natural physical reaction in the form of life. And yes, evolution wrote this particular chemical novel, if we are using metaphors. The rest is what we make of it. Push it too far from the data, and the whole rationalist house of cards comes a-crashing down.

