Humor and intelligence: are funny people smarter

Nathan barely speaks in meetings. But when a quarter of an hour has gone by with nobody settling who actually owns the task, he drops one sentence and the whole table cracks up. It took him under a second, and in that second he ran more mental operations than anyone around that table could consciously describe.

That speed is why humor ended up on the radar of people who study intelligence. A joke is not just social seasoning. It is a timed problem, and you have to solve it before the conversation moves somewhere else.

Half a second between the mismatch and the punchline

A good joke works in two moves. First it builds an expectation about how the sentence will end, then it breaks that expectation with something that does not belong there. The first move is called incongruity, and on its own it is nowhere near enough to make anyone laugh, otherwise every typo in an email would be comedy.

The laugh arrives on the second move. Your brain has to find another reading of the situation in which the odd piece suddenly fits, and the moment it lands on one, it gets a reward. It is the same click you get from a riddle or a cipher, only wrapped in a single sentence and settled in a fraction of a second.

Nathan's line went: "We have three deadlines already, we can just take the average." The first few words promise an ordinary bit of admin. The last three turn the deadlines into figures in a spreadsheet, and only in that second reading does it surface what the team really thinks of its own deadlines.

And you get absurdly little time for the solving. The conversation moves on within seconds and takes with it the entire context the punchline stood on. The same sentence ten seconds later is no longer a joke but a remark, and you can usually tell from the polite half smiles.

Hence one awkward property of humor: an explained joke stops being funny. When somebody serves you the second reading, they did the work for you and the reward never arrives. The only entertainment left is watching them sweat through the explanation.

What Greengross and Miller found

In 2011, Gil Greengross and Geoffrey Miller gave roughly four hundred students two kinds of task. One was a standard set of reasoning tests, the other was jobs like "write a caption for this picture" or "answer this question as funnily as you can". Independent raters then scored the answers without knowing how anyone had done on the tests.

The students who produced funnier answers scored higher on general intelligence on average, and the fit was tighter still with the verbal side of it. A connection between being funny and reasoning ability does exist, then, and it is not a small one.

That the tightest fit turned up on the verbal component makes sense. Words carry several meanings at once, and anyone who can spin them quickly has material to build the second reading from. Most of a punchline happens at the point where two distant meanings meet unexpectedly, and hunting for distant connections is exactly what verbal tasks probe.

One feature of the setup is worth pausing on, though. Nothing objective decided what counted as funny; the people reading the answers did. So what got measured included the ability to hit the taste of a random group of strangers, which is a skill in its own right.

Now for the part that usually gets lost in the retelling. This was a correlation, not an equals sign. Among those students were people with excellent test scores and dismal captions, and people with average scores whose answers floored the raters. Funniness and reasoning ability overlap; they do not merge.

The authors drew one further conclusion from it, and that is why the study still gets cited. A good punchline on demand cannot be crammed or faked, so being funny may work as an honest signal of how quickly somebody's mind moves. A signal you can read instantly, with no CV involved.

Dark humor: the same problem, one notch harder

If a punchline is a puzzle, dark humor is a puzzle with the difficulty turned up. On top of the incongruity comes a subject that stings in ordinary conversation: death, illness, disaster. The listener has to hold two things at once, that this is a joke and that it is also something serious, and slide into neither disgust nor indifference.

Plenty of people freeze at exactly that combination and do not laugh. Not because the punchline escapes them, but because it strikes them as out of place, and that feeling beats the urge to finish solving the puzzle. Which makes dark humor an unusually delicate test: only the person who can hold both halves together gets through it.

In 2017, Willinger and colleagues handed participants a set of dark cartoons and asked how well they understood them and how much they enjoyed them. The people who scored high on both did better on intelligence tests and showed lower levels of aggression. Not higher. Lower.

It is worth separating the subject from the aim. Dark humor describes what a joke is about; a sharp humor style describes whose expense it comes at. They can meet inside one sentence, but they are not two names for the same thing, as the piece on dark humor works through in more detail.

Why it does not run the other way

Laura gets through three books a month and at work she is known as the person who thinks the consequences through before anyone else does. At a table with friends, though, her jokes never catch. They either land three seconds late or she spoils them herself in advance with "this is probably stupid, but...".

What she is missing are three things that have almost nothing to do with reasoning ability. The first is volume. Funny lines get produced in bulk and most of them are weak; anyone who never says them out loud has nothing to select from and never finds out which one worked and why.

The second is nerve. A punchline is a public bet, and the silence after a failed joke feels far longer than it actually is. Someone unwilling to take that risk still has the line in their head, but swallows it, and ends up known as a person who does not joke.

Then there is something that sets humor apart from most other feats of reasoning. You solve an equation on your own at a desk and you know it is right even if nobody watched. With a joke, the audience marks it, instantly and out loud, and there is nothing you can do about the verdict. A quick mind turns out the raw material; the finished product comes out of other people's reaction.

And then there is reading the room. The same sentence gets an evening with old friends going and hangs in the air over lunch with a new client. No amount of mental speed rescues that part, because it does not run on speed but on attention to other people. That it can be trained just like volume and nerve is covered in the piece on how to be funny.

A joke as quick thinking out loud

Take one successful line apart and out comes a list of abilities that look unrelated at first glance. Reasoning tests capture some of them fairly well and others not at all.

The top of the table explains why Greengross and Miller got the connection they got. The bottom explains why it did not come out stronger.

Working memory is especially worth stopping on. For a punchline to land you have to hold both versions of the sentence in your head for a moment, the expected one and the other one. Anyone tired or angry does not have that capacity free, which is why humor works neither as output nor as input for people in the middle of an argument or after a sleepless night.

Honestly, though: when did you last have a finished punchline in your head and not say it? What stopped you? Whether it was that the line was not good enough or that you were not sure about the people around you tells you a fair amount about which part is limping.

A signal, not a diploma

Being funny can be read as a signal. Someone who regularly hits the punchline is incidentally showing that their mind catches quickly, that they can keep more than one reading of a situation in play, and that what happens in the room does not escape them. It is information, not a certificate: it says something about probability, not about the specific person in front of you.

The reverse direction is trickier and worth stating bluntly. Not being funny is no mark of stupidity. Plenty of people are funny only in writing, in short messages, where they can wait for the second reading to arrive. Others are hilarious inside their own field, where the punchline rests on things a handful of people understand, and nothing of it survives the pub.

You see it most clearly in a foreign language. Move to another country and your humor is the first thing you lose and the last thing you get back, because a punchline rests on shades of words and on what everyone there grew up knowing. For a year or two you come across as a serious person with no spark, even though nothing inside your head has changed. Only the register available to you has.

Third, there is the difference between production and appreciation. Some people almost never tell jokes but laugh first and loudest in the room, because they find the second reading before everyone else. From the outside they look humorless. In fact they are solving the same problem, they just do not hand it in out loud.

Which position your joking usually falls into is described by four styles that differ in tone and in where they aim: the overview sits in the piece on humor styles, and a rough placement comes out of the short humor styles test. Neither of them says anything about how clever you are. Both say something about a habit you have grown over the years, and habits can be tuned.

At the next table you share, try noticing one thing. Not who talks the most, but who starts laughing half a second before everyone else. That person usually did not wait for the punchline, they got there on their own.