For the seventh consecutive December, the magazine looks back on the passing year through a special lens: ideas. Editors and writers trawl the oceans of ingenuity, hoping to snag in our nets the many curious, inspired, perplexing and sometimes outright illegal innovations of the past 12 months. Then we lay them out on the dock, flipping and flopping and gasping for air, and toss back all but those that are fresh enough for our particular cut of intellectual sushi. For better or worse, these are 70 of the ideas that helped make 2007 what it was. Enjoy.