I love cultural arbitrage: taking words, images, ideas from one place on earth (or time in history) and importing them into a new context where they’re suddenly fresh and striking again. This is, of course, common practice, so just like financial arbitrage, it takes a lot of work to stay ahead of the pack. And systems like Ffffound and Tumblr have become great levelers: They’re like financial markets, automatically “pricing in” new information about what’s cool. Oh, you like that retro-chr