I love systems. The idea of them. Thousands of pieces, each doing a simple - almost trivial - task, but coming together to form a beautiful tapestry. Maybe you've seen Wintergatan's Marble Machine, or one of the many Lego Great Ball Contraption builds out there. It's almost mesmerizing to watch. Maybe it's what fueled my multiple addictions to OpenTTD and Sweet Transit. Seeing tens, hundreds, of pods light up and then soon disappear in k9s.