Over the last year or so software development estimates have become a popular topic. The popularity stems from the inherent fact that estimating software development is difficult. Some people are writing about ways to improve your estimates while others are writing about how to manage software development without estimates.
I facilitated my own rendition of the #NoEstimates Puzzle Experiment for the September 2013 Agile Iowa user group meeting. This experiment was created by Chris Chapman to generate critical thinking and conversation concerning whether estimates are necessary to produce quality software. The meeting had a great turnout, with around 40 people attending during a Midwest thunderstorm that left over 20,000 people without power.