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Two thoughts: 1) very realpolitik that the two main places I've lived in my life has been shaped - and thus shaped me - my the glacial cover of the last glacial maximum.
2) it's kind of mind boggling how quickly Seattle has changed. All cities are engineered - the one I grew up in was half dug out of swamp land. But in Sweden that took hundreds of years (my hometown is over 800), Seattle is around 150, with a fire resetting to it 115 years ago.