SICP Lecture 7A: Metacircular Evaluator, Part 1

MIT OpenCourseWare · Lecture · YouTube title: Lecture 7A: Metacircular Evaluator, Part 1

Why it's here

HN holds the SICP lectures up as joyful classics, and this lecture as the moment the evaluator is revealed.

What it covers

Lecture 7A from MIT 6.001 (SICP) by Abelson and Sussman introduces the metacircular evaluator, a Scheme interpreter written in Scheme. It shows how evaluating a program is itself a program.