where you have concrete problems. if not maintained, whether it's a concrete problem or a settling problem, it could be a bridge, it could be a building, it could be a dam or a sea wall. these kind of things happen if not tended to. i'm glad that the congress recently passed an infrastructure -- an infrastructure bill that provides repairs to this crumbling infrastructure. if money is not provided to repair these things, this is just a taste of what's to come, whether it's bridges or walls or anything. >> let's deal with the instant circumstance. is it correct for us to suggest that there is hope, because even when something pancakes like this, whether it starts at the bottom when you have layers of compression like this, that there are still voids, there are spaces and arches and areas made where you could have many possible spaces for survival? >> yes, it is possible.