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The circle of life
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this post was submitted on 13 Aug 2024
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DNA is a long molecule that is made of many individual smaller molecules (called nucleotids) that come in four variants (called A, T, G, C). So a DNA molecule is a sequence that can be represented as ATGCTGCCTA...
This is a sequence of characters in this representation, but it's also a sequence of something resembling characters in reality. The cell has a component called "ribosome" that can take this sequence of characters as input and uses it kinda like a blueprint, and produces a protein (enzyme) depending on the blueprint. That enzyme can have many varying functions. So yes, this is a complex system.
The flow of information goes mostly in one direction: that is, from the cell nucleus's DNA to mRNA (intermediary step) and then to the ribosomes, where proteins are produced. Still, many parts of this process resemble script and communication (the transport of information), which I call "language".
I do understand how DNA works, I'm actually a biologist. And I don't doubt that it is complex. What I doubt is that it is a complex system of communication. But sure, I see your point that is some form of complex transferral of information and that yes, if I stretch my understanding of language a bit, it probably is one as well. Maybe the next question would be: what is this useful for? What can we learn from that? Like I said (not sure if in this or in another comment), maybe we then need to have various categories for language?
E: and we could explore the new fringe cases a bit more, too. If DNA/RNA is a form of language, then even non-living entities can have language like in form of viruses. If abiotic things get complex enough, would we also call it language at some point? Like chemical reactions?