# Chapter 2 - A Brief History of Talking to Machines | Loop Engineering

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# Chapter 2 - A Brief History of Talking to Machines

                Last updated 2026-07-13. This page hosts the era-by-era cognitive-load notes that accompany Chapter 2, plus the original publications the chapter condenses (the Verification Habit Ch 5 and Ch 7 essays on chatbot lineage and prompt engineering).

### Companion activity

Choose one interface shift from this chapter and write what moved from the human to the machine: translation burden, syntax burden, trust burden, feedback latency, or recovery cost.

### What this chapter argues

                Every interface shift from compilers and batch workflows through assembly, high-level languages, command lines, prompts, dialog, and agents moved cognitive load between the human and the machine. The dialog era is the latest move in that lineage, not a discontinuity. The architecture this book describes is the natural next step: the layer above dialog that organizes how partners actually collaborate over time.

### Key sources

Chapter 2's own citations are Willison on the shift from prompting to loop design [D11] and Sweller's cognitive-load work [D17], which supplies the per-era load framework. The full source list lives in the print book's Appendix D.

- D17 - Sweller, J. (1988). Cognitive load during problem solving . [doi.org/10.1207/s15516709cog1202_4](https://api.crossref.org/works/10.1207/s15516709cog1202_4) - the load framework used to score each interface era. The chapter is explicit that no primary source quantifies per-era allocation at this granularity; the trajectory follows the theory and the per-era discussion.

- D3 - Correa, F. (2024). Dialog Engineering: AI as Your Research Assistant . [medium.com/@fabioc](/prompts/dialog/) - background reading: the essay that named the dialog discipline. Cited in the Introduction and Chapter 8 rather than here.

### Primary-source links

- [Correa, "Dialog Engineering: AI as Your Research Assistant" (October 2024)](/prompts/dialog/) - the public artifact this chapter's dialog-era treatment draws on directly.

### Chapter contents

- The era table: switches → punch cards → assembly → high-level → command line → prompt → dialog, with cognitive-load score per era.

- What each interface forced the human to learn vs. what it learned about the human.

- Why the dialog era is the first one in which the machine is doing meaningful adaptation back, and what that costs and gains.

- The setup for the four-layer architecture as the natural next-step organization above the dialog interface.