So what does a regulation look like that even if you can define it? Are there different, you know, are there going to have to be like 10 different types within one regulation?

Yeah, probably not.

And you can define it.

It's just a matter of putting a definition that's appropriate for the purpose.

And to some extent, the definition, at least from a regulatory perspective, probably is predicated on what's important to the regulator.

So if the health effects science advances and they know that it's a certain type of polymer, or a certain number of particulates that are the problem when we drink them, then maybe that stuff goes into the regulation, or the definition rather.

So for example, in California, they'll say things like, okay, microplastics are solid, so it excludes the natural polymer we add in the drinking water treatment process.

So do you see any gaps, or do you think...