There is a test worth applying to professional writing, including your own. Call it the “who else could have written this” test. Read something you have written recently and ask that question honestly. If the answer is “anyone,” the writing needs work.

Not because there is anything technically wrong with it. The grammar is fine. The structure is logical. The tone is appropriate. But in 2026, technically correct and professionally appropriate is the floor, not the ceiling. A March 2026 survey of 991 hiring managers by Resume.org found that 57% now consider creative thinking, communication, and storytelling more valuable than technical skills alone, and the same proportion considers creative employees harder to replace with AI than technical ones. The implication for professional writing is direct. Distinctiveness is a competitive advantage, not a stylistic preference.

What Actually Makes Writing Feel Human

The elements of writing that read as distinctly human are, counterintuitively, not the sophisticated ones. They are the small, specific details that signal the author was actually present and thinking.

Readers are getting more alert, not less. The Stanford AI Index 2026 finds 52% of people worldwide now say AI products make them nervous, up from 39% in 2022, even as 59% see more benefits than drawbacks (Chapter 9). Writing that sounds machine made triggers the first number in a reader who holds the second.

A startup founder I know writes investor updates that consistently get responses while her competitors’ go unacknowledged. The difference is not the quality of her metrics. It is that every update contains one sentence that could only have come from her: a specific observation about something she noticed that week, a moment of acknowledged uncertainty, a detail that proves she was paying attention rather than composing. “We lost a customer we should have kept and I am still thinking about why” is more compelling than any polished summary of retention figures, because it signals a real person who is honest about what is hard.

A corporate communications manager I worked with was producing newsletters that her team considered strong but that generated almost no engagement. When we looked at six months of them together, the pattern was clear. Every piece of news was presented with equal weight and identical energy. Nothing was surprising. Nothing had a perspective. The writing was technically clean and communicatively neutral, which is the same as communicatively absent.

A student writing a graduate school application essay described her research interest in four perfectly structured paragraphs that could have been written by anyone applying to the same programme. The version that got her an interview was one paragraph shorter and contained a single sentence about a specific moment in a specific lecture that changed how she thought about her field. That sentence was the only thing in either version that was actually hers.

The pattern across all three is the same. The specific example rather than the general category. The moment of acknowledged uncertainty used sparingly. The sentence that goes slightly beyond the minimum, that makes a reader feel they are in the company of a person rather than a document.

The Voice Question, Made Practical

“Find your voice” is advice given to writers everywhere and consistently struggled with because voice feels abstract. Here is a more practical frame. Your writing voice is not a style you choose. It is what comes out when you stop trying to sound professional and start trying to be understood. When you stop managing impressions and focus on communication.

The way to develop it is not complicated. Write the first draft as if you are explaining it to someone you trust and respect. Get the thinking out in the clearest, most direct version possible, even if it is too casual, even if it is rough in places. Then revise toward professionalism without revising away from clarity. Most professional writing goes in the opposite direction. People write for impressiveness first and try to recover meaning in the edit. The result is polished and difficult to follow.

The old advice was to model your writing on the most respected voices in your field. Read widely, absorb the patterns, replicate the register. That advice produces competent imitation. In 2026, competent imitation is what AI does better than any human. What AI cannot replicate is the texture of a specific person’s thinking: the particular way you connect ideas, the things you notice that others miss, the perspective that comes from your specific combination of experience and judgment.

Why Korean Recruiters Are Already Running This Test

If the who else test sounds like a writing teacher’s idea, it is worth knowing that hiring managers in Korea already apply it. When the Ministry of Employment and Labor and the Korea Employment Information Service asked HR staff at the country’s top 500 companies by revenue about self introduction letters written with ChatGPT, 315 companies answered, and the answers were blunt.

Read the last card next to the first. Most companies were not yet checking, and most of them already disliked what they saw. So the penalty does not really come from detection software. It comes from a reader who has seen two hundred letters that open the same way and has stopped believing any of them. A letter that fails the who else test fails it with a person, not a program. I go through what the English version of that letter is actually for in The English 자기소개서 Is Not a Cover Letter, and the wider risk of polished writing with nothing underneath in The Danger Zone: Perfect Grammar, Zero Understanding.

What makes this more interesting is that Korean readers are not especially anxious about AI. Pew Research Center’s spring 2025 survey across 25 countries found a median of 34% of adults more concerned than excited about the increased use of AI, but as few as 16% in South Korea were mainly concerned (Pew Research Center, October 2025). Korea is comfortable with the tools. The objection is narrower than fear. It is a document that was supposed to show who you are and shows nobody in particular.

A Worked Example: One Paragraph, Rewritten

Here is the test applied to a single paragraph. Minji is a brand marketer at a cosmetics company in Seongsu, applying for a regional marketing role at a global consumer goods firm in Seoul. The key paragraph in her first English draft was correct, confident and completely interchangeable.

The second version is shorter on adjectives and longer on evidence. It does what the founder’s investor updates did earlier in this piece: it admits something is unfinished, and that is exactly why it reads as a person. Minji still needs a sentence on what she found, and that sentence should carry a number. If you find it hard to turn what you did into a line like that, Trace Your Impact walks you from the task to the result. Then paste the paragraph into Copy Check and see whether it still sounds like you after the edit.

There is one more reason this matters, and it has nothing to do with recruiters. In a 2023 study from Ohio State University, 208 adults who were told a fictional friend had used AI to help write a message to them judged that the friend had put in less effort, and felt less satisfied with the friendship (Ohio State News, September 2023). Help from another person had a similar effect. Readers are not only judging the words. They are judging what the words say about how much you cared. I made the same argument about email in AI Will Write Your Email. It Will Not Save Your Reputation.

A Sentence Level Practice Worth Building

Korean is constructed very differently from English. The verb comes at the end of the sentence, which means meaning is held in suspension until the very last word resolves it. English can borrow this deliberately. The strongest position in any sentence is the end. Save the most interesting claim, the most surprising word, the clearest implication for the end rather than burying it in the middle.

Run the four edits in that order and the paragraph gets shorter before it gets better, which is the right way round. The third edit is where Korean speakers writing in English have an advantage, because you already hear meaning arrive at the end of a sentence. Use that instinct on purpose. For more on building a voice that survives the editing stage, Professional Blog Writing: How to Develop a Voice That Sounds Like You goes further.

“Communication is difficult, important, and completely learnable” lands differently from “Communication is completely learnable, even though it is difficult and important.” Same words. Different rhythm. Different emphasis. The first version makes the reader arrive somewhere. The second version puts the qualifications first.

One practical constraint that improves almost any piece of writing immediately: take your best paragraph and cut the first sentence. In a large majority of cases, the paragraph is stronger without it, because the first sentence of a paragraph is usually a summary of what the paragraph is about, which means it is a spoiler. Start with the detail, the example, the specific moment. Let the reader arrive at the insight rather than announcing it in advance. That experience of arriving, rather than being told, is what makes writing worth reading.

What would you write differently this week if you applied the “who else could have written this” test before you sent it?

→ The Writing Lab is where I work through specific writing challenges, from professional communication to content strategy. If you are working on your writing voice or improving how your team communicates on paper, the coaching section of the Work With Us page has more.

If you are preparing for interviews, the Interview Strategy tool on this site can help you build answers that hold up in the room.

---