Definitions and Dimensions of Liveness

on YouTube ↗37m

" summary

Argues for five concrete axes of live feedback and shows real systems mapped to them: granularity of feedback (Brett Victor demo, Observable notebooks, projection boxes), reactivity (Natto’s keystroke updates vs Observable’s cell runs), velocity (punched cards → time sharing → need for incremental execution), bidirectionality (Sketch, Engraft extractor enabling output-directed edits), and criticality (Etoys/EO circuit where visualization drives computation), plus discussion of moldability and tradeoffs.

AI-written summary · about

" chapters (9)

1. 0:00Introduction
2. 1:06Feedback in live programming
3. 3:14Granularity of feedback
4. 6:08Reactivity of feedback
5. 8:14Velocity of feedback
6. 10:02Bidirectionality of feedback
7. 11:25Criticality of feedback
8. 13:32Future dimensions and conclusion
9. 13:54Q&A

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