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In Stan Lo's talk titled *"Ruby Debug - The Best Investment for Your Productivity"* at RubyKaigi 2022, he emphasizes the significance of mastering debugging tools to enhance productivity in Ruby development. Lo begins by sharing his background, including his recent move to London and his role at Shopify’s Ruby Developer Experience team. He notes his long-standing attendance and participation in RubyKaigi since 2015.

Lo highlights the importance of debugging, arguing that while many developers know it’s essential, they often fail to invest time in honing their debugging skills. Drawing from personal experience, he points out that his initial reliance on Pry, with limited commands, left him feeling unprepared compared to the comprehensive capabilities of modern debugging tools like Ruby Debug.

Key points discussed include:  
- **Common Debugger Features**: Lo outlines essential debugging features such as step debugging, frame navigation, and debugger commands, indicating that mastering these will significantly enhance debugging efficiency.  
- **Data Insights**: He shares data from a Ruby community survey, revealing that many developers still primarily use Pry and miss out on the advanced functionalities provided by dedicated debuggers.  
- **Live Demonstration**: He provides a practical demonstration of Ruby Debug, illustrating features like setting breakpoints, viewing variables, and navigating frames, which allows developers to investigate program execution effectively.
- **Scriptable Breakpoints**: Lo introduces the innovative concept of scriptable breakpoints, showing how users can automate their debugging workflow. This allows commands to run automatically on breakpoints, greatly reducing manual input errors and organizing the debugging process more effectively.
- **Advantages and Disadvantages of Ruby Debug**: He discusses the advantages, including continuous maintenance by the Ruby core team and strong VS Code integration, as well as challenges such as current limitations with fibers and thread control compared to Byebug.

In conclusion, Lo urges Ruby developers to adopt Ruby Debug, stressing that investment in debugging techniques pays off by streamlining workflows and increasing productivity. He encourages the audience to practice these techniques and engage with the community to improve the available resources on Ruby Debug, ultimately aiming to boost their debugging capabilities and efficiency.

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