Audience discussion and exercise to demonstrate two rounds of common production assumptions. What factors matter when we want to estimate how long something will take? And what if we stopped asking for estimates? What could we do instead? A two-round exercise with “companies” of 5-6 people will create something simple, under two sets of assumptions, and compare the results. Some data on what we know about estimates vs. completion times, and how to apply these principles at work (and home).