This doesn't possess any of the attributes of a truly impressive Rube Goldberg contraption, like the recent OK Go "This Too Shall Pass" one. The best of those m

This doesn't possess any of the attributes of a truly impressive Rube Goldberg contraption, like the recent OK Go "This Too Shall Pass" one. The best of those machines use irreversible, analog processes, releasing bursts of potential energy. This Lego video (which goes on for 8 minutes) uses largely digital processes that are externally powered and keep going after the balls have run through them. A lot of work went into it, but I wouldn't describe it as "Amazing," or even as a Rube Goldberg machine. It's just a long, cartoonish assembly line. I say "assembly line," but it doesn't even accomplish anything. Spoiler alert: It's a loop.