I’m still not clear about the recruitment. You have a team doing it ahead of time — I get that. And you use pretty much the same screener. How far ahead of time are they doing it? Are you assuming that you will have something to do each week and you recruit a month ahead, even if you don’t know what you’ll be testing? Where do you do the research? At the Google office in London? All these things affect the feasibility of following this approach by others with different resources and locations.