 Because you might run into complications of like bacterial growth, for instance. These things have to be super sterile in order to just grow the meat and nothing else. So there's a lot of scepticism about how they're going to do that and what inputs they're going to need. Is it going to be salty, for instance, to produce that growth media? Where does that come from? What sort of environmental footprint does that have? So there are lots of questions that are coming about and very little transparency in order to ascertain whether it's going to be viable in future or not.