We optimize what we measure Scrum does not say “only focus on output”, but, unfortunately, humans will optimize for what they measure. If you worry about story points & hitting your estimations, that’s what is going to consume your attention. That is what you and your team will optimize for. And that is the core critique of Scrum as it is practiced: That it focuses a product team’s attention so heavily on delivery — on building lots of features quickly & efficiently — that teams fail to focus on spending time to discover what the right thing to build is. Henry Latham, Why Scrum is killing your product optimizationagilefeatures
Reversibility of perspectives Irwin's thinking was informed by the writings of Alfred Schutz, a follower of Husserl, ...[who] had noted that typification was at the basis of the assumption of the reversibility of perspectives, which was a condition for the possibility of intersubjective experience and the notion of a shared, commonly experienced world. It is also the first step in overcoming the specificity of the individual in favor of knowledge about groups. What is gained by this procedure is an understanding of demographics, but the cost of this understanding is a lack of emphasis on differences between individuals and their unique subjective experiences. Matthew Simms, Robert Irwin: A Conditional Art You and your user are one