they have multiplicity of values. So these are not basically unknown. What we are basically hoping to do with our order diplomacy framework is that we want to explicitly recognize this and see really how to at least adjust some of it so that we can go or we can be little bit better than what we were yesterday. See, I may not be here for another 30 years, so I could not see this changing very much in 30 years. In 30 years really, we still had the same number of people dying out of this lack of sanitation and water across the globe. So are we basically dumb or we are just too insensitive? So this is where essentially we are standing here and in a present deal we came from past but we don't know exactly where we came because past is, although came, happened once, the interpretation of past could be quite different, really, because for example, if you think about really how I came where I am right now, if you ask my mother or my wife or my daughter, they will have different stories. And some of these stories will be probably similar but it will not be exactly the same. So that means our understanding of the past is also really colored by our own experience, our own perspectives and the way we have seen it. The problem even is that future could be even more unknown