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A Higher Common Sense

A Higher Common Sense

A place for Writings about Evidence-Based Design

  • CS 177 Human Centered Product Management
    • CS177 Human Centered Product Management Syllabus
      • Lecture 5B- Agile and Storymapping
    • Lecture 1A | Introduction to Human-Centered Product Management
      • What do you want from CS177
      • 1A Welcome to CS 177: Human-Centered Product Management 1
    • Lecture 1B | Human-Centered Product Management
      • 1B Strategy for Human-Centered Product Management
    • Lecture 2A | Human-Centered Product Management
    • Lecture 2B | Human-Centered Product Management
    • Lecture 3A – Markets & Tech Stack
    • Lecture 3B — Guest and Value Proposition
    • Lecture 4B – Participatory Roadmaps & Case Study
    • Lecture 5a– Agile, User Stories and User Story Mapping
  • CS247B Design for Behavior Change
    • 1A Introducing Design for Behavior Change
    • 1B Norms, Models, Brainstorm, Screeners
    • 2A Norms and Study Guide
    • 2B Ethics, Persuasion and B=MAT
    • 3A Secondary Research and Theories of Behavior Change
    • 3B Switch, Fraud,
  • Product Management Library
  • The How and Why of Sketchnotes
    • Glossary for Design Techniques
CS177 Human Centered Product Management

Welcome to A Higher Common Sense

Three launches that skipped the test card

November 6, 2026

Quibi, the Humane AI Pin, and Juicero each raised substantial capital, launched at full scale, and ceased operations within two years. In each case,…

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Week 6 PSP: Test Cards for Products That Flopped

November 6, 2026

Quibi’s test card: We believe that people who commute and have 5-10 minutes between tasks would pay $5 for premium entertainment split into short-form…

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Week 6 PSP: Test Cards for Products That Flopped

November 5, 2026

Before their big launches, Quibi, the Humane AI Pin, and Juicero could have used these simple tests to find out whether customers would actually…

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PSP6: What a Demo Won’t Tell You

November 5, 2026

People rarely give up a familiar routine for something that only half works, because switching takes effort. A slick demo can hide that effort,…

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Week 7 PSP: Three Ways to Price AI

November 5, 2026

AI products use different pricing models. Here I examine where ChatGPT, GitHub Copilot, and Intercom Fin puts the risk. ChatGPT charges for access through…

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Why Some Products Flopped

November 5, 2026

Quibi, Humane AI Pin, and Juicero all raised significant funding but ultimately flopped. I think many of their biggest risks could have been tested…

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PSP 6: Test Cards for Products That Flopped

November 5, 2026

Quibi: a short-form video streaming platform built for mobile devices We believe… people will pay $5/month for premium shows built for short phone sessions…

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Week 6 PSP: Test Cards for Products That Flopped

November 5, 2026

Quibi’s riskiest assumption was that people would pay for a separate subscription service dedicated to short-form videos on their phones when free versions already…

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Week 6 PSP: Test Cards for Products That Flopped

November 5, 2026

Quibi:  We believe: people are willing to pay $5/month for 10-minute-long shows that they can only watch on their phone To verify, we will:…

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