This is the mind map I made based on the contents of the third chapter of The Duolingo Handbook .

The third chapter focuses on the concepts of rapid innovation and continuous improvement. It is not just about speed, it is about creating a culture that cultivates experimentation and prioritisation of what really impacts the user.

The main key points are:

• clock speed, for the importance of being fast in action and minimising the interval between decision and implementation
• experimentation and learning to support continuous improvement through real-world data
• prioritisation and efficiency to emphasise the need to focus on high user-impact activities, mercilessly cutting everything else
• tension between agility and processes, where we need to understand what is the right balance between speed and the processes required to maintain control and quality

Below the mind map.