And I think this is the first agent, really, that allows us to directly measure impacts of an environment. Because we're able to take away the notions of traditional programming and code that provide instructions for agents working within a particular field. So, all our observations about behaviour of biology within a particular environment really can't do away with the innate programming that we have assumed to be the locus of control of behaviour. And by actually creating up a set of conditions that are living and seeing impacts of the environment upon those, is something now that we can use to directly measure environmental impact. And I think that's very exciting. Because it's one part of the technological equation to do with biology and how biology works. If you think about what Darwin was saying, it's an interaction between something innate within the organism and the environmental conditions. So we've had technologies that can measure things that are happening inside the cell, but not those that can read the environment and the environment alone. And I think these protocells are actually a technology that will be really useful to enable us to do that. And I think that's going to open up a whole new science for us.