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In the presentation titled **Keeping Your Code Strong**, Jack Danger Canty, an engineer at Square, discusses the concept of 'strong code', a term he has coined. He emphasizes the importance of having a robust and resilient codebase that can adapt to future changes, which is crucial for managing a financial system with a small team. Here are the key points covered in the talk:

- **Definition of Strong Code**: Strong code is not defined merely by its execution efficiency but rather by the quality and structure of the source code itself. It denotes resilience, adaptability, and a solid foundation, making it enjoyable to work with.

- **Importance of Strong Code**: Canty highlights the necessity of strong code for developers, especially during critical moments like business growth or changes in direction. He shares from his experience the challenges that arise when one lacks strong code and advises against such situations.

- **Characteristics of Strong Code**: 
  - **Functionally Correct**: It includes proper implementation of design patterns, effective testing strategies, and reliable test coverage. Nonetheless, Canty points out that many experts in the audience would be better suited to discuss these aspects.
  - **Ease of Editing**: Strong code is identifiable by its simplicity to modify. It should allow developers to approach the code and confidently make edits without second-guessing.

Canty aims to convey that the foundation of software must prioritize resilience and usability, which ultimately leads to a more enjoyable and productive coding experience.

The talk serves as a guide for developers to understand the attributes of strong code and encourages them to build systems that can easily evolve as project requirements change.

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