BLOG Thoughts, observations, and rants. On Ethics and Software Development Nov 28, 2017 | Software Development Thoughts on the relationship between the two. The Folly of Absolute Estimates Nov 27, 2017 | Software Development A great deal of development effort is based on a faulty premise. Introducing 5marbles Nov 26, 2017 | Announcements, Software Development A few words on the new company. Recent Posts On Ethics and Software Development The Folly of Absolute Estimates Introducing 5marbles TagsAgile ethics Facebook Scrum WordPress Comment Policy 5marbles welcomes and even encourages critical discourse on this site. We will, however, douse comments with hydrochloric acid if they descend into inappropriate language, disrespectful behavior, excessive self-promotion, or personal attacks.