When I first encountered DCS, I had no idea where I was but having watched this video I now realise this was a good thing because not knowing where I was put me in a stronger position to know where I wasn't. This means that even if I thought I was totally lost, in fact I wasn't, something which is very reassuring for someone that's not sure whether they're lost or not. Several months on, I load DCS and think I know where I am but then, applying the video-science, I recall this isn't a good thing as it means I'm totally lost which means I've been wasting my time and have learned absolutely nothing about DCS. My conclusion: the video is spot on (which means it isn't) I think!