As I was biking the other day, I passed some guys getting ready to put their projects in the water. They were from Busan National University, and they were all in the Water Bike Club. Getting the bike over the fence was the trickiest bit. I even took a little video. If they get going fast enough, they hydroplane on the wings down at the propeller level. They could only keep that speed up for about 20 seconds at a time. I found myself wondering how soon I'd be able to buy one of these, and asked about the weight restrictions. They're running a couple of guys who weigh less together than I do by myself. Sigh.