Jeffrey Jacobs asks and LinkedIn. Why aren't views useful more for semantic layers. I think to answer that question I need to look at the, you know, like when we look at the semantic layer. And then on the second side, the databases they don't have a notion of the measure of the how and the concept of a measure at all. So what you're starting to do is this aggregation during the query time. That's actually the part of the metric definition that's a part of your data definition and then started to happen on the bi side.