that said, you would still if you opened up the window, if the parise was right, you might catch a faceful of smoke or soot. riding in the cars we have open plan. britain, private compartments where you have two or four people in the compartment. in the united states everybody always in the same car. it was a democratic way. inevitably you would have some conflict with your seat mate. you might want the window open, he or she might want it closed. you might have somebody in there reading silently, loudly so everybody hears it. other people singing, talking loudly. frankly basically the way we fly in airplanes today. there's always somebody in there that's a little annoying, whether it's the crying baby or the person who wants to you can talk, talk, talk, when you want to sleep. those issues turn up. less difficult than clothes catching on fire but nonetheless an annoyance. when we think of 440, i don't think if is the exaggeration to say this, this is the engine that built the united states. when we talk about westward expanse moving to the pacific, it could not have been done two without