At this writing I'm just west of the Alexander Archipelago, with 7,093 km left from Dallas to Seoul. We started out at 10,999 km, so this is serious progress.
It turns out, this is the longest flight I've ever been on. I didn't realize that when I booked it; I thought Shanghai to O'Hare was longer. Well, it's farther: PVG-ORD is 11,355 km; DFW-ICN is "only" 11,005 km. But because I'm flying west, this flight will be nearly two hours longer than the one from Shanghai.
Fortunately for me (if not for the airline), the flight has a lot of empty seats. I'm in 33A and I have 33B for my stuff. The person in 32A has reclined all the way back so her seat is almost touching my nose, forcing me to put my laptop on the 33B tray table and type at a 45° angle.
Well, I've had nearly three hours of that, and I'm done. Time to pull out my backlog of This American Life episodes and close my eyes.
All right. It's 7am in Seoul. We land in nine hours...