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Synthesist in the Shell — A blog by Linghao Zhang

A Taxonomy Is a Theory of What Differences Matter Evolving Memory Systems: An Eval-First Approach Memory Systems Are Evolved, Not Designed Code as Config: The Start of Software Speciation The Bespoke Flywheel The Negative Space of AI Memory My 2025 Games of the Year My 2025 Games of the Year Why You Should Probably Work on AI Engineering AI Assisted System Design Interview Prep Hotel California Hotel California How To Be Great 101 Lessons Learned Building LLM Applications Why is ML Runtime Infra So Hard Naming Matters: DRI vs. Owner in Software Projects Becoming a Staff Engineer Demystifying TLMs Learnings as a Tech Lead Notes: Staff Engineer Self Awareness with Tools Editing Technical Direction Rethinking Pessimism Superficial Similarity Grow @ Google 03: 文档意识与培养新人 我的时间管理系统 Notes: A Philosophy of Software Design 「程序员」和「软件工程师」是一回事吗? Grow @ Google 02: 「能用就行」还远远不够 Excerpts from Permanent Records David Perell 关于在线写作的建议 Grow @ Google 01: Noogler 成长的必经之痛 Excerpts from Blindsight 过去这五年,我学到了什么 利器访谈:创造者和他们的工具 Notes: The Effective Engineer 过去这五年 Notes: Steven Pinker on Linguistics, Style and Writing Notes: Programming Beyond Practices 如何提高英语水平 DIY 留学申请全攻略 初心 Notes: How Technology is Hijacking Your Mind 如何备考 TOEFL/GRE Learning How to Learn 课程笔记
Notes: Alistair Croll on Lean Analytics and Growth Hacking
2016-06-21 · via Synthesist in the Shell — A blog by Linghao Zhang

Video


Lean Analytics

Don’t sell what you can make, make what you can sell.

First product: a tool to learn what you should’ve built in the first place.

We’re all liars.

Most startups don’t know what they’ll be when they grow up. (e.g. Flicker)

Analytics can help. Measurement of movement towards your business goals.

Purpose: iterate to product/market fit before the money runs out.

A Good Metric:

  • Comparative
  • Understandable
  • Ratio / Rate
  • Behavior-changing (most important)

Metrics make you know yourself.

Acquisition-oriented versus Loyalty-oriented.

  • Qualitative / Quantitative Exploratory / Reporting
  • Cohort / Segment / AB Test / Multivariate Analysis

Must learn to look at data properly. Don’t drag yourself down with the past.

Eric’s three engines of growth:

  • Stickiness
  • Virality
  • Price

Dave’s Pirate Metrics: Acquisition -> Activation -> Retention -> Revenue -> Referral.

Virality before revenue: cuts down the amortized cost for each customer.

Prepaid problem: months before you find out that customers are gone. Trick: send out emails some time after subscription. (would you like to cancel model)

Business model diagram.

Focus is hard to achieve. Find one metric that matters.

Drawing some lines in the sand. Not knowing what normal is makes you do stupid things.

Baseline:

  • 5-7% weekly growth
  • 10% visitor engagement/day
  • 2-5% monthly churn: last-ditch appeals and reactivation
  • Calculate customer lifetime: CAC under 1/3 of CLV

Lean Analytic Cycle:

  • Change the line in the sand only when the customers allow you to do so.
  • Instinct: with data, find commonality; without data, good guess.

AirBnB case with professional photography:

  1. gut instinct (hypothesis)
  2. candidate solution (MVP)
  3. measure the results
  4. make a decision

Circle of Friends case study.

Data-driven iteration.

Growth Hacking

Definition:

  1. Use people and technology to increase a key metric in your business (by automation)
  2. Optimize a factor you think is correlated with growth
  3. Data-driven learning + Subversiveness + Guerrilla marketing

Not about building things, but people caring about what you build.

We pay attention to interesting things.

Lagging / Leading Metric Correlation / Causality

Growth hacking demystified: Pick a metric to change -> Find correlation -> Test causality -> Optimize the causal factor

Growth “hacking” is making a system to do something it wasn’t supposed to do. (e.g. LinkedIn API, early day AirBnB and Craiglist, Airport baggage delivery system)

A vision that obvious in hindsight + Take baby steps to get there.

How not to Fail

Why businesses die:

  1. Incompetence
  2. Lack of managerial experience
  3. Lack of industry experience

An entrepreneur is (maybe) not a founder. The goal is to discover a new business model in an uncertain environment. Learning trumps planning. A startup is an organization desgined to search for a sustainable repeatable business model.

Degrees of uncertainty: Market with unmet need -> Job to be done -> Business diagram -> Business model -> Business plan

Early on, growth is everything. Need customers to keep learning. Also a substitute for solvency.

Three currencies of the Internet: Reputation, Attention, and Money. Startup success is often about your exchange rate between the three.

Business model – keep it simple. Start with the customer journey. Job to be done.

Staffing:

  • Hacker + Hustler + Designer + Analyst
  • Product CEO / Sales CEO / Finance CEO 5-minute favor.

Your growth problem is probably a marketing problem.

Message map. Like a funnel.

People do things because they want to get laid, paid, made, or afraid.