The second oldest known photo of Seattle, dated 1869 — from Pioneer Square at Yesler's Wharf, looking North.

Anyone interested in the past and future of growth of the Seattle area should check out this KUOW podcast of an hour-long "debate" between Knute Berger and Timothy Egan. I deploy the rabbit ears on the word debate because Berger, Egan, and the moderator (Crosscut editor David Brewster) spend way too much time reminding listeners that they're all friends, and not enough time actually debating; with something like one million people expected to move here in the next twenty years, the topic deserves much more heat than they give it. Still, it's a start, and they trade a lot of interesting observations on the Northwest. Click here to listen.

Photo via Vintage Seattle, courtesy of the Washington State Historical Society.