OpenAI's $852B valuation faces investor scrutiny amid strategy shift, FT reports
Summary
The post explains how Clojure's persistent vectors achieve persistence through path copying in a tree structure, enabling efficient updates and appends while sharing most of the structure across versions. It covers the internal design, root overflow handling, and popping, and clarifies that the O(1) intuition is a simplification due to a shallow, high-branching-factor tree. It also hints at future parts exploring deeper implementation details and optimizations.