Book Review: Liu Lan's "Reverse Learning" (Unlearning) — Core Ideas and What's New

Forum topic · ✨步子哥 · 2026-01-05

Summary

A Chinese forum post reviews Liu Lan's book Reverse Learning (反向学习), which argues that adult learning problems stem not from learning too little, but from inheriting flawed habits from schooling. The book proposes five disciplines of learning power: (1) reverse learning/unlearning — first removing wrong, outdated knowledge; (2) reference-answer thinking — treating all knowledge as a reference answer, not a standard one; (3) focus — learning less but deeper via eight focusing rules; (4) pattern-based learning — combining underlying patterns with fragments; and (5) deep transfer — a practical four-question method (hear, think, become, use) to turn knowledge into action. The review highlights the book's contrarian framing of school education's hidden curriculum as the root cause, its treatment of unlearning as the first and hardest discipline, and its actionable tools. It also suggests reading order, self-diagnostic checks, and who may not benefit from the book.

Book Review: Liu Lan's Reverse Learning — Core Ideas and What Makes It Different

*Translated and summarized from a forum post on zhichai.net.*

Key points

This is not a speed-reading or memorization book, but a "system manual" for adult learning.
Core claim: adult learning problems come not from learning too little, but from carrying over wrong habits taught by school, so the first step is to "uninstall" those habits, then rebuild a personal learning system.
The book is organized around five disciplines of learning power:

Overall framework: from "uninstalling" to "rebuilding"

The author (Liu Lan), a former top scorer of the Sichuan province college entrance exam who later worked in leadership and learning training, argues:

> "The primary task of adult learning is not adding new knowledge, but removing wrong, outdated old knowledge."

He identifies four bad habits from the "hidden curriculum" of schooling:

1. Standard-answer thinking — seeking the "correct answer" instead of what fits your situation 2. Fixing weaknesses / well-roundedness — in the workplace, endlessly patching weaknesses amplifies them 3. Fragmented learning — hoarding, check-ins, skimming tips without structure 4. Learning without applying — much studied, little changed in work and life

The five disciplines

1. Reverse learning (Unlearning). Learning = unlearning + learning. It is a long-term discipline — harder than acquiring new knowledge. The author cites Munger ("if you don't discard a favorite idea, the year is wasted") and Keynes (new ideas are easy to accept; escaping old ones is hard).

2. Reference-answer thinking. Key phrase: "it depends." All knowledge, theories, and experience are reference answers, not standard answers. Strategies include insightful classification, standard reference answers (e.g., a manager's classic question: "What do you think?"), interactive learning with experts as dialogue partners, focusing on process, surfacing hidden assumptions, and inverting problems.

3. Focus. Learning more is not better. Eight focusing directions: what doesn't change; what's practical; your strengths; one topic; one author; one sample/case; one thing at a time; and patterns (transferable ones rather than scattered facts).

4. Pattern-based learning. Novices see fragments; experts see patterns. Learning = patterns + fragments. Learn fewer things, learn them deeper, hard parts first. Practices include "middle-distance" learning (neither over-abstract nor case-only) and absorbing/analyzing fragments with patterns to build a knowledge tree.

5. Deep transfer. A practical four-question method: 1. What did I hear? (accurate understanding) 2. What did it make me think of? (connect to my experience) 3. What do I become? (what behavior of mine should change) 4. Where will I use it? (which project, task, or relationship)

What is novel or counterintuitive

Blames school education directly as the root cause of adult learning problems, rather than treating it as neutral background.
Promotes unlearning to the first discipline, explicitly defined as removing old, wrong knowledge — a "clean first, rebuild second" logic instead of quick-reading or memory tricks.
Treats learning power as a meta-ability and a system engineering problem, backed by concrete tools (8 focusing rules, pattern-learning steps, the four-question method).
Operationalizes critical thinking into the slogan "it depends" — every idea is a reference answer to be adapted.
Breaks application into four levels (hear → think → become → use), a template adults can apply immediately.

How to use the book

1. Self-diagnose: check whether you seek standard answers, patch weaknesses, learn in fragments, or learn without applying. Two or more hits — this book fits you. 2. Suggested reading order: preface + intro + Chapter 1 (why unlearn), then reference-answer thinking and focus, then pattern-based learning and deep transfer as advanced material. 3. After reading: design one learning plan with the four-question method; use the eight focusing rules to cut 90% of ineffective learning; practice saying "this is just a reference answer — what's mine?"

Caveats

Less useful for students aiming at exam scores (it criticizes exam-oriented education).
Not a quick memory/reading tricks toolbox; the emphasis is a whole learning system.
Experienced self-learners may find some ideas familiar, though the integrated framework and tools still have reference value.

Bottom line

The book's core contribution is not "memorize and read more," but helping readers identify and uninstall school-instilled habits that no longer serve adults, and offering a complete system — uninstall → rebuild → focus → pattern → transfer — plus immediately usable tools. For anyone who studies hard but can't seem to apply what they learn, the reviewer calls it a useful mirror.