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CogniGuide

Sunk Cost Fallacy Mind Map for Clear Decision Making

See how the sunk cost fallacy breaks down into causes, examples and ways to avoid it. CogniGuide can also build a map from your own notes, PDF or slides.

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CogniGuide at a glance

What you get
Interactive mind maps of the main ideas and how they connect. Free: overview maps (detailed maps on your first 3 creations). Plus: detailed maps with supporting concepts.
Exports
Your first PDF or PNG export is free; Plus exports anytime.
Price
Free plan: 5 creations a week, up to 3 a day. Plus: $9.99/month or $99.90/year (USD; local prices at checkout).
Sign-up
A free account is required before you create anything (Google or email). No credit card.
What you can upload
PDF, Word (.docx), PowerPoint (.pptx), plain text or Markdown, and images (PNG, JPG, WebP, GIF), or type a topic. One file per creation on the free plan; several at once on Plus.

How it compares: vs Knowt · vs Quizlet · vs NotebookLM · vs Mapify

Why Map the Sunk Cost Fallacy

A visual layout makes the bias easier to spot in your own decisions and easier to remember for exams.

Build from your own material

Upload lecture notes, a PDF chapter or slides and get a map of the sunk cost ideas they contain.

Clear structure for study

Branches separate the definition, the causes, real examples and practical fixes so you can revise each part.

Test yourself and go further

Turn the map into a quiz, make flashcards from the same notes, or export the map as PNG or PDF.

How to Make Your Own Map

Start from your notes or a topic, and the AI does the first draft of the structure.

  1. 1

    Add your material

    Upload a PDF, Word or PowerPoint file, a text or Markdown file, an image, or type the topic.

  2. 2

    AI builds the map

    The AI turns your content into an interactive mind map with expandable branches.

  3. 3

    Study, expand and quiz

    Expand any node, edit the text, then export the map or turn it into a quiz.

Sunk Cost Fallacy Mind Map: Key Branches

The sunk cost fallacy is the tendency to keep investing in a decision because of past costs that cannot be recovered, such as money, time or effort. A useful mind map divides the idea into its definition, the psychological drivers behind it, typical real-world examples, and the methods people use to correct it. Seeing these parts side by side helps you recognize the pattern before it affects a choice.

  • Definition: past costs that should not affect future choices
  • Causes: loss aversion, pride, and wanting to justify earlier decisions
  • Examples: finishing a bad movie, continuing a failing project
  • Fixes: judge only future costs and benefits, set exit criteria in advance
  • Related ideas: opportunity cost and escalation of commitment

Use the map to revise the concept or to check a current decision, asking which costs are still ahead. To build a version tied to your own course notes, create a personalized map with CogniGuide.

Sunk Cost Fallacy Questions Answered

Quick answers on the bias itself and on making your own map.

What is the difference between sunk cost and opportunity cost?

A sunk cost is money, time or effort already spent and unrecoverable. An opportunity cost is the value of the best alternative you give up by choosing one option. Good decisions weigh future opportunity costs and ignore sunk costs.

Why do people fall for the sunk cost fallacy?

People feel losses more strongly than gains, want to appear consistent, and dislike admitting a past choice was wrong. These pressures push them to keep investing rather than stop.

Which files can I use to make a sunk cost map?

You can upload a PDF, Word or PowerPoint file, a text or Markdown file, or an image of your notes. You can also type the topic and let the AI build the first version.

Can I turn the map into a quiz?

Yes. CogniGuide can turn a finished mind map into a quiz to test yourself, and the same notes can become flashcards. There is also a free plan with 5 creations a week.