- The author describes how the CARDiac, a paper computer from 1968, taught him the concept of 'legibility' in computing by physically moving tokens to understand computer operations.
- Viewing source code (from BASIC programs to early web HTML) allowed him to peel back abstractions and gain deeper understanding, similar to using the CARDiac.
- Vibe coding and automated code tools (like macros or LLMs) serve as entry points; while they solve immediate problems, they also create opportunities for users to dive deeper into coding.
- Legibility (the ability to understand and manipulate systems at different abstraction levels) is crucial for problem solving, improvement, and maintenance of technology.
- The first programmers (often women, per Claire Evans' 'Broad Band') developed powerful intuition through hands-on physical cabling, enhancing their debugging skills.