You can do it by hand, swapping each dash for a comma, period, parentheses, or colon based on the job it was doing. That works, but it's slow on longer pieces.
A faster option is to run the text through a humanizer tool that finds the overused dashes and replaces them with punctuation that fits, keeping the meaning while dropping the tell.
No. A well-placed dash is good writing. It can add a sharp break or set off a surprise, and skilled writers use it on purpose.
The problem is overuse. When the dash replaces every comma, period, and colon, it stops adding voice and starts adding sameness. Used once in a while, it's a tool. Used constantly, it's a tell.
Not by themselves, but they add weight. Detectors score many features at once, and punctuation habits are easy to measure. A page stuffed with em dashes gives the tool one more pattern that leans toward machine text.
Cutting the dash count down to normal human levels removes that signal and helps the writing read as your own.
Pick the punctuation that matches the pause. Use a comma for a small break inside one thought, a period to split two complete ideas, parentheses for an aside, and a colon before a list or explanation.
Read the sentence out loud after the swap. If it still sounds right, the fix worked and the meaning is intact.
It's one of the best-known tells. On its own, a single dash proves nothing, since people use them too. The tell is the frequency. When almost every sentence leans on a dash to link ideas, the writing reads as machine-made.
Readers pick up on the flat rhythm, and detectors treat heavy dash use as one more signal among several.
Yes. AI models pull the em dash into text far more often than most human writers do. They learned the habit from polished training material where the dash is common, and they treat it as a safe, all-purpose connector.
The result is paragraphs with three or four dashes where a person would use one or none. That density is what makes the mark stand out as a tell.