I think the test performs best in conditions that are clearly genetic. I think that's where it has its highest role right now, so it's an excellent diagnostic test for many of the conditions my colleague and others have spoken to. For highly penetrant genetic conditions that affect children or adults, disorders that clearly run in families, disorders with a strong genetic predisposition, it's very good.
There is clearly a genetic basis to almost every common disease, which is not to downplay the role of environment that is, of course, significant. Our chance of developing diabetes, cancers, heart disease, etc., are at least in part predicted by our genetics. It's my personal opinion, not shared by all, that yes, we can sequence and find out what some of those variants are right now, but we don't really understand how they all interact with one another to create a risk for an individual. I'm a bit more guarded about that outcome.
We may get to that point, but I don't see that as the usefulness right now. It's more about the risks of strongly genetic conditions.