For what it's worth, I was thinking of developing an app on similar principles a couple of months ago and I talked to at one of the Sage people. They were enthu

For what it's worth, I was thinking of developing an app on similar principles a couple of months ago and I talked to at one of the Sage people. They were enthusiastic about it. There have also been papers modelling the effect. I don't like Cummings' politics but he is a smart guy. I think he'd follow the science.