closest to the closest neighbor. it's covered in a fire-retardant gel. so that prevents the fire from moving to another house and, god forbid, the rest of the neighborhood. they've taken a lot of precautions. >> okay, you're break out a little bit. we're going to try to establish a better line with you. that may be the wall that was p set up to prevent the fire from getting to the closest house. as we discussed, it's very calculated. one gust of wind going the wrong way or the danger of that could take a fire into -- make this? a whole other problem. >> we talk about the -- the ten-mile-per-hour rule when it comes to a wildfire. 20 miles an hour is a huge threshold where sparks will fly miles and miles. they're not only looking at this neighborhood. the sparks are literally going into the sky now.