Production defects, velocity and adaptation

1. Through estimation in Agile, we are not trying to predict. Predictability isn't the end goal of Agile. 
2. Predictability is helpful in knowing when a certain release will be shipped and to know how soon a team can deliver.
3. Don't stress too much on Predicting. Don't predict harder instead adapt better.
4. Instead of planning ahead, focus on adapting when dealing with unpredictability.