Dave Thomas: Pragmatism, Feedback Loops, and Why AI Doesn’t Change the Fundamentals

In this episode of Risk-First: Stars of Software, Rob Moffat talks with Dave Thomas, co-author of The Pragmatic Programmer, original signatory of the Agile Manifesto, founder of The Pragmatic Bookshelf, and long-time thinker on software simplicity, agility, and feedback-driven development.

Dave has spent decades shaping how software developers think about programming — from pragmatism and feedback loops, through Agile, Ruby, and testing, to his more recent work on simplicity and AI-assisted software development.

Along the way, Rob and Dave dive into:

• Why nearly every idea in The Pragmatic Programmer still applies in the age of AI
• The role of feedback loops in software development
• Why Agile was originally about values and adaptability
• The origins of the Agile Manifesto and how it unexpectedly “went viral” after Snowbird
• How military concepts like “commander’s intent” parallel modern agile software teams
• Why organisations built around top-down command structures struggle to be genuinely adaptive
• How delighting users requires empathy, not just technical competence
• Why empathy matters not only for people, but for machines, systems, and software design itself
• The possibility that future AI-generated software may eventually become unreadable to humans
• Why AI may ultimately reinforce good software design practices like small modules, meaningful names, and readable structure
• The ongoing “CVE apocalypse”
• Why writing books — and software — is fundamentally about synthesising and refining ideas from reality into reusable forms
• Dave’s belief that the best way to navigate an increasingly complex world is to live “agilely”: taking small reversible steps guided by feedback

The Pragmatic Programmer
https://pragprog.com/titles/tpp20/the-pragmatic-programmer-20th-anniversary-edition/
Classic software engineering book introducing concepts like pragmatism, tracer bullets, orthogonality, and feedback-driven development.

The Pragmatic Bookshelf
https://pragprog.com
Technical publishing company focused on practical software development books across programming, AI, testing, and engineering.

Agile Manifesto
https://agilemanifesto.org
The original Agile Manifesto and principles created at Snowbird in 2001.

Simplicity
https://pragprog.com/titles/dtlang/simplicity/
Dave Thomas’ recent book exploring simplicity, empathy, systems thinking, and software design.

FINOS
https://www.finos.org
Open source foundation discussed in relation to software supply chain security and open source sustainability.

Dave Thomas’ Substack
https://newsletter.pragmaticengineer.com
Dave’s writing and commentary on software, AI, and programming ideas.