Southwest Airlines Says Bye to Open Seating--and Hello to Boarding Complexity

WIRED 

An airline's boarding policy shake-up shows the limits of efficiency. Boarding a Southwest flight is no longer first come, first served. What is the best way to cram people into a tin can in the sky? For five decades, Dallas-based budget airline Southwest made its reputation on its unique open seating policy. Savvy passengers who checked in early got to board early, too, lining up at distinctive silver stanchions to claim first dibs on whichever seat they preferred.