For some reason this industry continues to call out the em dash — as if a horizontal line in a sentence were a confession that a machine wrote it.
Come on. This is a thinking game.
If your AI detector is “I saw an em dash,” you are not detecting intelligence. You are detecting that someone, human or otherwise, knew how to punctuate a breath. That is not a scandal. That is literacy.
What a book editor would say
Ask a real book editor — the kind who has cut manuscripts until the argument could stand on its feet — what they think of the em dash.
They will not clutch their pearls. They will tell you the em dash is a tool. It holds an interruption. It sets off an aside more sharply than commas. It can replace a colon when you want heat instead of announcement. It can catch a turn in thought the way a good speaker catches a turn in a room. Overused, sure, it gets mannered — the same way exclamation points get mannered, the same way fragment sentences get mannered, the same way “authentic” LinkedIn line breaks get mannered. Overuse is a craft problem. It is not a species test.
Editors have been wrangling em dashes since long before your favorite chatbot had a login screen. Emily Dickinson built a poetry career on them. Novelists use them for interruption and voice. Business writers use them when a parenthesis would feel too polite and a period would feel too final. If your industry “tell” would flag half the library, your tell is broken.
What a publisher would say
A publisher cares whether the book is true, clear, sellable, and finished. They care about voice that holds for three hundred pages. They care about arguments that do not collapse under a second reading. They do not sit in acquisition meetings saying, “Kill this — I counted fourteen em dashes, must be AI.”
They might say: tighten this. They might say: you lean on dashes when you should choose a clearer structure. They might say: your rhythm is getting cute. That is editing. Editing is not witch-hunting punctuation because a LinkedIn thread decided a mark was guilty by association.
When I wrote Hands Up as a letter, not a manual, the punctuation had a job: carry a human voice across the page. Dashes, periods, questions, the occasional ellipsis — each one is a choice about breath. Reducing those choices to “AI smell” is how an industry admits it has stopped reading for meaning.
Em dash versus “…”
While we are here — because the same people who fear the em dash often abuse the ellipsis — let’s put them side by side like adults.
- Em dash (—) — a clean break or a sharp aside. It says: stay with me; this next clause matters. It is decisive. It is common in edited prose for a reason.
- Ellipsis (…) — trailing off, omission, or a soft hesitation. Useful when the thought actually trails. Soft when everything trails. A page of “…” can feel like the writer never wanted to land the plane.
Neither mark makes you a machine. Neither mark makes you a genius. Choice makes you a writer. If you delete every em dash to prove you are human, you are not proving humanity. You are performing a superstition — and often replacing a strong mark with a weaker one because Twitter said so.
Why this industry latched onto a silly tell
Because a tell is easier than a standard. It is easier to hunt punctuation than to ask whether the work has judgment, proof, architecture, and a point of view. It is easier to say “I can spot AI” than to say “I can spot an empty argument.” Empty arguments existed before generative models. So did purple prose. So did consultants who never built anything.
The same industry will paste a generic paragraph with no dashes, no soul, and no receipts — and call it “human” because it is bland enough to pass the vibe check. Bland is not an authenticity strategy. Bland is how you lose the room while congratulating yourself for avoiding a character code.
If you want real tests for AI theater, use better ones: Can they show the system? Can they own the failure modes? Is the data real? Behind the curtain. Cardboard AI. Expert or novice. Those are thinking-game questions. Em-dash counting is a fidget toy for people who want certainty without comprehension.
This is a thinking game
We are not looking for people who want a punctuation SOP so they never have to judge a sentence. We need readers. Editors of their own work. People who choose a dash because the thought needs a hinge — not because a model suggested it, and not because a fear-thread forbade it.
That is the same standard as This Is a Thinking Game: learners and critical thinkers, not script-followers. If your quality bar is “zero em dashes,” you have confused compliance with craft.
What actually signals weak writing (AI or human)
- No point of view — sentences that could belong to anyone.
- No proof — claims with nobody attached and no scar tissue.
- No compression — paragraphs that refuse to decide.
- No ear — rhythm that never changes because nothing is at stake.
- Fear edits — deleting craft to satisfy a superstition.
Notice what is missing from that list: a well-placed —.
Action
- Stop scoring documents by dash count. Score them by clarity, truth, and usefulness.
- Read one page of a serious book you admire and notice the punctuation doing real work — dashes included.
- When someone says “em dash = AI,” ask them what a publisher would cut for — and whether they have ever sat through a real edit.
- Write the next thing like a thinker. Choose the mark that serves the sentence. Then ship.
If you want more on judgment over scripts, Intelligence Over Playbooks and This Is a Thinking Game. If you want the longer letter written with a human ear, read Hands Up. If your team needs the argument in a room, book the keynote.
The em dash is not a bad sign of AI. Panic about the em dash is a bad sign of an industry that would rather police characters than practice taste.