supposed to be going there, and it's not. it's not here at all. exactly. well, they forgot to put in a pipe. 0r there was a change made on site where they decided to go outside. once this is handed off to the next trade or the next set of work starts, because that has a knock—on impact on the rest of the building process. and that wouldn't be spotted until when? until it's too late, if i'm being serious about it. unlike other augmented reality headsets, the xyz system uses these lasers to sweep across the site and precisely locate all of the helmets. this then taps into the site co—ordinate system to put the ar building exactly where it should be in your vision. so would you sign off this piece of works? no, they forgot to put this on. this is just shoddy. this is shoddy. building buildings is a large, complicated, messy business, and it's been a surprise to find out that things don't always go to plan, literally. but maybe with a system like this, we'll see fewer missing hoofer doofers in the future. hoofer doofer? technical term — move on.