What this unit covers
Learn to update a belief step by step as real evidence arrives, instead of holding on to a first impression.
By the end you will be able to
- Explain why a first impression is a starting estimate, not a final answer.
- Tell apart a fair, evidence-sized update from an overreaction.
- Decide how much to shift a belief when a new fact arrives.
How it starts: A Confident Tip About a Stock
- Someone tells you a stock is a sure thing to buy right now.
- Over the week you read one good update, one flat, one worrying.
- Does your first strong opinion still match what you have actually seen since?
Words you will meet
- Bayesian thinking
- Updating a belief by an amount that matches how strong each new piece of evidence is.
- Anchoring
- Holding on to the first piece of information you heard, simply because it came first.
In this module: Thinking Like a Professional
- Decision Frameworks
- First-Principles Thinking
- Probabilistic Thinking
- Bayesian Thinking (this unit)
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