This document discusses ways to boost a development team's speed. It identifies several activities that can positively or negatively impact speed, including skills and experience, software complexity, work-life balance, and adding business value. The document recommends finding an ideal speed that mixes periods of extreme sprints with longer marathon phases. It also stresses the importance of focus, clear requirements, feature prioritization, automating tasks, and saying no to take on too much work. Regular breaks, sleep, nutrition, and limiting overtime are presented as ways to improve productivity while maintaining work-life balance.