My session will be the next generation of customer experience metrics. I think we're all a little bit curious on what is on the horizon I think at least for me when I'm referring to NPS these days, I'm talking about the National Park Service and I think most of us probably should be a customer efforts score still has a lot of value in certain areas in other areas, it does not customer satisfaction. It's raining and it's popularity to some degree. let's talk about this legacy metrics what when to use them when not to use them, but then even more importantly, let's talk about what we should use tomorrow.