Imagine if someone chopped up one hundred copies of War and Peace, and you had to try to recreate a single copy from the pieces. If the novel was chopped up into individual letters, it would be impossible. If it was chopped up into paragraphs, you have a chance to recreate the novel, using the overlaps.
I thought this was a good, simple metaphor to think about DNA as the physical set of instructions for all life. This also got me to thinking: if we chopped up a city, what would be the code to put it back together again?
I've been putting off writing about cities as systems for awhile now, if only because cities form systems of so many different things, including and not limited to: humans, animals, diseases, plants, water, social structures, trade, economic systems, religion, migration..... the list is almost infinite, and the set of things I know about is decidedly finite. However, one has to start somewhere and some time. I think I'll finish my list of environmental challenges first.
Until then, I suggest you all read The Complete's Idiot Guide to Decoding Your Genes.
[Note: Dinosaur scientists -- or, as they're properly known, paleontologists -- must get sick of hearing about that crappy book written by Michael Crichton. No, I mean the one about dinosaurs. On the other hand, in the movie they got to see their life's work animated in mind-boggling detail, devouring Jeff Goldblum no less. That's a pretty fair trade-off, if you ask me. Not all paleontologists can be that bothered, either, since one of them wrote the inevitable book, titled The Science of Jurassic Park, or How to Build a Dinosaur.]
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