compressor, all of these things together randomly. a cherry picker is right here. let's talk to elaine. she's a picker and she knows. elaine, how do you know where to get everything? >> it shoots into our scanners, our scanners tells us the location and description of the item we grab it and put it on the tote for the next location. >> reporter: it's easy for you to find this? >> yes. >> reporter: how quickly can you go between a couple of the items? >> it takes less than a minute. >> reporter: that's what elaine is doing here today to show you how the shelves look and how crazy it s you can see how big everything is here, too. this is a massive space. this is scott and he's with amazon as well. explain, because i'm not doing a great job of explaining it myself. why is it so random on the shelves? >> we want to make the most of the space that we have. we have hundreds of millions of