An independent publication · Feynman Archives
A confident answer is not the same as an explanation.
Six practical questions, built from verified Feynman sources, for testing explanations, evidence and decisions — with printable worksheets that turn each one into ten minutes of real work.
Instant download. No account, and no email address needed to read the preview.
Chapter one, in eight seconds
Take the words out. See what is left.
Some answers close a conversation without opening anything. A name gets supplied where a mechanism was requested — and the name does the emotional work of an explanation while doing none of the actual work.
Our AI-powered engine optimises inventory allocation dynamically across your network.
What’s left: “Our engine allocates inventory across your network.”
That isn’t a claim — every inventory system does that. The whole promise was living inside the three deleted words. Now you have a question worth asking, and it has nothing to do with whether the product is “AI”.
01 — The gap this book is about
You come away with the words. Later you realise you can’t do anything with them.
Someone explains something to you — a consultant, a specialist, a salesperson, a headline, a piece of software. It is fluent, assured, delivered without a pause. And some time afterwards you notice that you could not repeat it to anyone else, could not use it to predict what happens next, and could not tell whether it was true.
Most of the time nothing follows from this. Occasionally the thing you did not really understand turns out to have been expensive.
There are two ways to get it wrong, and they are mirror images. The first is deference: they went to school for this and you did not, so you nod, and you sign, and you find out later. The second has become far more common — having been burned once, you decide credentials mean nothing and the official story is always a cover.
Both are the same failure with the sign flipped. In each case you are deciding what to believe based on who said it, rather than on what would have to be true. Neither one is thinking. Thinking is what happens in between — and it turns out to be a small set of questions you can learn.
02 — What’s inside
The six questions
One per chapter. Each with a worked example taken all the way through, a blank worksheet, the common mistakes, and an honest note on what the test cannot do.
The Word-Removal Test
If the important label disappeared, could I still explain what is happening?
The Prediction Test
If this claim is true, what should I expect to observe?
The Mechanism Test
Does this explain how it happens, or merely describe what happened?
The Evidence-Trail Test
Where did this claim originate, and what is missing from the version I saw?
The Self-Deception Test
What would I prefer to believe, and what is the strongest evidence against it?
The Confidence-and-Next-Step Test
How certain am I, what would change my mind, and what is the safest useful next step?
Plus a chapter most books in this area skip entirely: how to ask these questions without turning into the person who thinks every expert is a fraud. Chapter 7 argues the opposite case, at length, and gives you sentence templates you can use as they are.
Six questions. Six pages you write yourself.
03 — What you actually get
Not six ideas you agree with. Six pages you wrote.
- The Field GuideAbout 13,500 words across eight chapters. No padding, no filler, no chapter summaries repeating what you just read.
- Six test examples, plus one complete-file exampleEach a realistic adult situation taken all the way through with the worksheet filled in. All examples are fictional composites created to demonstrate the worksheets — they are not case reports.
- A separate printable worksheet toolkitSix core test worksheets, one quick-reference sheet, and a two-page Personal Clarity File. Sized for A4 and US Letter, designed to work in greyscale with real room to write.
- The Personal Clarity FileA master template that takes one situation of your own through all six questions, start to finish.
- Complete source notesEvery quotation with its original source and a link you can open and check yourself.
- A list of famous “Feynman quotes” we could not verifyAnd therefore did not use. Knowing which celebrated quotations are unverified turns out to be useful in itself.
Formats: PDF and ePub (Kindle-compatible), plus the printable toolkit in A4 and US Letter. Large readable type. Instant download.
04 — Fit
Who this is for —
and who it isn’t
People with real experience behind them, who have run things, hired people and made decisions that mattered — and who keep meeting confident explanations they cannot evaluate. You do not need a technical background. There is no physics in this book.
It helps with
- ◆A proposal at work that sounds impressive and cannot be pinned down
- ◆An expensive purchase where you cannot judge the claims
- ◆An AI-generated answer that reads well and cites nothing
- ◆A health headline that needs following up properly
- ◆A viral claim a family member keeps repeating
- ◆A consultant or specialist whose explanation didn’t land
- ◆A decision you cannot easily undo
It is not for
- ×Students revising for exams. This is not a study-skills book.
- ×Anyone who wants Feynman’s life story. There is no biography in it.
- ×Anyone who wants to learn physics.
- ×Anyone looking for confirmation that experts are frauds. Chapter 7 argues the opposite.
- ×Anyone who wants more information rather than more practice.
05 — Read part of it first
The whole of Chapter 1, free.
The preview is a real section of the book, not a table of contents. It includes the opening of the introduction, the complete first chapter with its worked example, one blank worksheet, and the source notes for that chapter.
No email address required. Nothing to sign up for. If it does not work for you, please don’t buy the book.
Chapter one
The Word-Removal Test
If the important label disappeared, could I still explain what is happening?
Worksheet
06 — About the sources
The part we’d want to know about, stated plainly.
The book draws on verified passages from six source works — lectures, addresses, books, and one BBC recording.
Every quotation traced
Each direct quotation was checked against a primary published source, and every one is listed in the source notes with a link or citation you can open yourself.
What couldn’t be traced isn’t in it
Where a well-known saying attributed to Feynman could not be traced to a primary source, it is not in the book. There is a short appendix listing those.
His part and our part, marked
Only one of the six questions is a direct instruction from Feynman. The other five are modern tools built from principles he stated. Every chapter ends with a note saying which part is his and which is ours.
We do not use the same anecdote twice, and we have deliberately left out the stories you have already heard many times.
07 — Questions
Before you buy
Is this a Feynman biography?
Do I need any physics or maths?
How long is it?
Is this the “Feynman Technique”?
Will this make me right more often?
Can I print the worksheets?
Does it replace professional advice?
Do I need to buy anything else afterwards?
What is the refund policy?
The Feynman Field Guide to Clear Thinking
By the end you’ll have taken one real situation of your own all the way through.
A plain-language version of the claim. A prediction it makes. A mechanism map. A trail back to the original source. The strongest case against what you were hoping to conclude. An honest confidence level. A next step that is safe if you turn out to be wrong — and one question you can actually ask out loud.
PDF + ePub + printable worksheet toolkit. Instant download. No email required for the preview.