hiidenkonttibeta

The floor in the Pendolino trains has a pattern consisting of red, yellow and black dots in a seemingly random pattern. It looks like this (actually it doesn’t, since my camera phone just can’t get it right, but at least the picture gives some idea):

Now, the uninitiated probably wouldn’t take a second glance at it. But an engineer may find it mildly interesting: is the pattern random, or does it start repeating itself at some point? If it’s random, how random is it? Is the world so fscked up already that someone has been able to acquire a patent for that (pseudo-)random mess?