2026
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Sutton RL Day 3：Dynamic Programming
TLDR: Dynamic programming turns known MDP dynamics into iterative policy evaluation and improvement through Bellman updates.
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Sutton RL Day 1：RL Problem 与 MDP 基础
TLDR: RL is interaction for long-term reward: policy chooses actions, reward gives feedback, value estimates future return, and Bellman equations connect the pieces.
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《自私的基因》第10章：你为我搔痒，我就骑在你的头上
TLDR: Group living and apparent altruism can often be read through self-protection, kinship, exploitation, reciprocal exchange, and the costs of being alone.
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《自私的基因》第9章：两性战争
TLDR: Sexual conflict begins with unequal parental investment, pushing males and females toward different strategies around mating, care, loyalty, and display.
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Crafting Interpreters 第 2 章笔记：A Map of the Territory
TLDR: This note maps the interpreter pipeline from source text through tokens, parsing, semantic analysis, code generation, and runtime choices.
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Crafting Interpreters 第 3 章笔记：The Lox Language
TLDR: Lox is the small language that carries the book: expressive enough for classes, closures, and control flow, but compact enough to implement twice.
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Crafting Interpreters 第 4 章笔记：Scanning
TLDR: Scanning is the first hard boundary in an interpreter: raw characters become tokens, and the rest of the language pipeline finally has structure to work with.
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《自私的基因》第7章：计划生育
TLDR: Reproduction is a trade-off between more offspring and better-supported offspring, so restraint can be self-interested rather than species-minded.