When Devin Liddell rushes to catch the King County water taxi, gazes out his office window at 1st and Union in downtown Seattle, or waits in a long line at Sea-Tac Airport to catch a flight, he starts imagining the future. Such idle thinking may be common, but for Liddell, it’s his job. As chief futurist at Seattle-based firm Teague, which specializes in design for transportation, Liddell has radical ideas on how design will change mobility, from urban cores to intercity travel, many of which he believes will transform infrastructure in and around the company’s home base.