Em Dashes

I have been hitting Option-Dash on a Mac keyboard for over a decade. It’s muscle memory. I don’t think about it. I don’t consult a style guide. My fingers just know that when a sentence needs a hard pivot, a comma is too soft and a period is too final, and there’s a keystroke for that. There has always been a keystroke for that.

Then large language models started writing, and they discovered the em dash the way a freshman discovers the word “juxtaposition.” They put it everywhere. Every clause. Every aside. Every place a period or comma would have worked fine, the models reached for the long dash because it sounds authoritative and slightly literary and, most importantly, because it appeared constantly in their training data. Which was, in part, written by people like me.

So now em dashes are a tell. Not a tell that the writing is bad. A tell that the writing might not be human. One em dash per paragraph and you’re fine. Three per paragraph and someone on Reddit will leave a comment that’s just the word “slop.” It doesn’t matter that you’ve been doing this since before GPT-3 existed. The reader doesn’t know that. The reader doesn’t care.

I went through every essay on this site and replaced my em dashes with periods, commas, semicolons, and parentheses. Every single one. I rewrote my own sentences. Force-pushed so the git log wouldn’t show the change. Sat there afterward feeling like I’d sanded the patina off something I’d built by hand because a machine learned how to fake patina.

I’m not proud of this, but I’m also not stupid. The signal is the signal. You don’t get to argue with what a pattern means to the person reading it. You can be right about your own history and still lose the argument, because the argument isn’t about you. It’s about the ten million pieces of generated text that trained the reader’s instinct before they ever found your site.

And that’s the thing that actually pisses me off. Not that I had to change my punctuation. Punctuation is just punctuation. What pisses me off is that the benefit of the doubt is gone. Every stylistic choice that overlaps with model output is now suspect. The em dash was first. What’s next? Semicolons? Starting sentences with “and”? The word “furthermore”? The phrase “here’s the thing”? The uncanny valley keeps moving, and the territory it swallows is territory that belonged to actual writers first.

There’s a word for what happened here: expropriation. Not of content. Of style. The models didn’t steal my essays. They stole the way I punctuate them. They reached into the space between my clauses and took the specific gesture I use to connect two ideas that don’t want to be separate sentences. And then they used that gesture so many times, so indiscriminately, that it stopped meaning what it used to mean.

Option-Dash is an em dash. Option-Semicolon is an ellipsis. Option-2 is a trademark symbol. Option-Shift-8 is a degree sign. I don’t look these up. I just hit them. I live on a keyboard the way a pianist lives on a piano, and I know where every mark is and what each one is for. I chose em dashes the way I choose variable names: deliberately, because the alternatives were worse. And now I’m choosing differently, not because the alternatives got better, but because some model poisoned the well.

The cruelest part is that the models learned it from us. They read millions of pages of human writing, noticed that good writers use em dashes, and started using them in every sentence. They took a signal of craft and repeated it until it became a signal of automation. They strip-mined a stylistic choice for parts and left the rest of us standing in the pit.

This isn’t about nostalgia for a punctuation mark. It’s about what happens when machine output becomes the default assumption. Every human writer now carries the burden of proof. You don’t get to just write anymore. You have to write in a way that doesn’t pattern-match to the thing that writes for free. Your voice has to be provably yours, and the proof can’t be an em dash, because the machine already took that.

Think about what that means for a second. The baseline shifted. It used to be that if something read well, you assumed a person wrote it. Now if something reads well, you assume a machine wrote it, and the person has to prove otherwise. The competent middle is gone. You’re either obviously human (misspellings, rough edges, visible effort) or you’re suspect. Polish is no longer a signal of skill. Polish is a signal of automation.

I adapted. I’ll keep adapting. But I want it on the record that I was here first. I was hitting Option-Dash before the models knew what a dash was. And I stopped, not because I was wrong, but because being right stopped mattering.

That’s the essay without a single em dash in it. You’re welcome.