Popular Idioms and Phrases: Splitting Hairs

by Chris Harris

Splitting Hairs: Why We Still Love This Centuries-Old Idiom

We all know a hair-splitter. You say the meeting started at ten o’clock and they point out that it actually started at 10:02. You say a politician broke a promise and someone replies that technically it wasn’t a promise, it was a commitment. You say your football team hasn’t won for six weeks and somebody triumphantly informs you that it’s actually five weeks and six days.

Technically they are right, but it actually makes no difference the outcome.

It’s one of those wonderful English expressions we use without thinking about the rather peculiar image behind it. Why are we splitting hairs, and who first decided that dividing something already incredibly thin was the perfect metaphor for arguing about insignificant details?

Where Did “Splitting Hairs” Come From?

To split hairs means to make extremely fine, often unnecessary distinctions, particularly when those distinctions make little difference to the main argument. It isn’t simply about being accurate. Accuracy matters if you’re building a bridge or measuring medication. Hair-splitting is precision applied when the precision arguably achieves very little.

The expression can be traced back centuries, with the figurative idea of splitting or cutting hairs appearing in English by the seventeenth century and “hair-splitting” becoming established later. The metaphor is brilliantly simple. A human hair is already incredibly thin, so attempting to divide one lengthways requires enormous effort for virtually no useful result.

It isn’t always pointless, though. Lawyers practically make a profession of it. The difference between a fee, a charge, a penalty and a fine might sound trivial until that distinction decides a multimillion-pound court case. Shakespeare’s The Merchant of Venice contains a wonderful example: Shylock’s agreement gives him his pound of flesh, but Portia points out that it doesn’t give him the right to spill Antonio’s blood. Sometimes splitting a hair can make all the difference.

Politics, Social Media and Football

Politics has turned hair-splitting into something approaching an art form. A politician hasn’t changed their mind; their position has “evolved”. A government hasn’t abandoned a policy; it has “reconsidered its implementation”. A target hasn’t been missed; the timetable has been “revised”. We are all infuriated by them interpreting things to suit their narrative.

Sometimes these distinctions are perfectly legitimate. At other times, they appear to be carefully selected words designed to avoid admitting the obvious. That’s why “you’re splitting hairs” is such an effective response. It doesn’t necessarily mean someone is wrong. It means their technical distinction doesn’t really alter the fundamental point.

Social media has provided the hair-splitter with the perfect habitat. Write, “Nobody uses fax machines anymore,” and someone will inevitably reply that their doctor’s surgery does. Say, “Everyone had a Nokia in the 1990s,” and somebody will announce that they didn’t. The exception might be technically correct while completely missing the obvious generalisation.

Football is equally good at it. “He wasn’t sacked; he left by mutual consent.” “He wasn’t dropped; he was rested.” “He didn’t dive; there was contact.” Then there’s the manager who “retains the full support of the board”, shortly before somebody changes the locks on his office.

VAR has taken football hair-splitting to extraordinary levels. We can now spend several minutes determining whether someone’s toe, shoulder or kneecap was fractionally offside. We’ve progressed from splitting hairs to splitting pixels.

Some Hairs Really Are Worth Splitting

There is a slight difference between hair-splitting and nitpicking — which gives us the perfect opportunity to split hairs about splitting hairs. Nitpicking generally means finding tiny faults, whereas hair-splitting involves making extremely fine distinctions. Pointing out three unnecessary commas is nitpicking. Spending twenty minutes explaining why “I definitely intend to” isn’t technically a promise is hair-splitting.

The expression has survived because the image remains instantly understandable. Everybody knows how thin a hair is, so everybody understands the absurdity of trying to divide one into something even thinner.

But perhaps we shouldn’t be too hard on hair-splitters. Scientists, lawyers, doctors, engineers, historians and judges all make extremely fine distinctions because sometimes those distinctions genuinely matter. The difference between an allegation and a proven fact matters. The difference between correlation and causation matters. The difference between £1 million and £1.1 million certainly matters if it’s your money.

Pedantry?

The quality of being too interested in formal rules and small details that are not important.

Depends on the subject. You are not being pedantic if you are arguing over something that involves precision; it may be then easy to accuse someone of splitting hairs, but they probably are not. If the subject is innocuous, timing, for instance, that bears no relevance to an outcome, that is splitting hairs as it is not important.

#Idiom #Idioms #Popular Phrases #English Language #English