A concept video, in contrast, is just a bunch of special effects. It exists free of any constraints. I disagree. If anything a concept video shows you where yo

A concept video, in contrast, is just a bunch of special effects. It exists free of any constraints. I disagree. If anything a concept video shows you where your constraints are. Concept videos aren't so effective for showing you what you can do -- but they are effective for pointing out what you're NOT thinking about (where you have effectively constrained yourself w/o knowing it). For example, would a 2005 concept video show people using a stylus on a tablet like device? I suspect quite possibly. An astute concept video watcher would question that. And hopefully open a conversation about it in a way you can't do with a tech demo (because people can shoot back in a tech demo that you need a stylus for a resistive display and capacitive is too expensive).