I keep thinking about grooming.

Not the salon kind. The monkey kind. The sitting around, picking bugs out of each other’s fur kind. The slow, intimate, slightly boring work of staying friends.

For a long time, that was how primates held society together. Touch one body, calm one nervous system, reinforce one relationship at a time. It worked fine, as long as your social circle was small enough to fit in a tree.

Then humans turned up and ruined the schedule.

The problem with too many people

As groups got bigger, grooming broke down. There were too many relationships to maintain and not enough hours in the day. You could spend all morning grooming one person and still be socially behind by lunchtime.

This is where Robin Dunbar comes in with a theory that feels obvious once you hear it.

We did not evolve language to talk about tools, or hunting, or the weather. We evolved it to talk about each other.

Gossip as social technology

Gossip sounds petty, but it is doing serious work.

When I talk with you about someone else, a few things happen at once:

• we bond
• we exchange social information
• we agree, quietly, on what behaviour is acceptable
• we build trust without touching

One conversation can include several people at the same time. No fur required.

Talking replaced grooming. Words replaced hands. Language became a way to groom at scale.

Why we never stop talking

This explains a lot of everyday life.

• Why small talk matters, even when it feels pointless.
• Why workplaces run on corridor conversations.
• Why group chats exist.
• Why silence between people can feel like something is wrong.

We are still doing the same ancient job. We are just using better tools.

The limit we keep hitting

Dunbar also suggests there is a rough ceiling to how many stable relationships we can handle. About 150 or so. Not because we are lazy, but because our brains are social organs with limits.

Language stretches those limits, but it does not remove them. Social media did not break the rule. It just made the edges messier.

What looks trivial is not

The key idea I keep coming back to is this.

What looks like idle chatter is often the work itself.

Gossip is not a flaw in human communication. It is the point. It is how we keep groups together without falling apart from the effort.

We stopped grooming each other’s backs and started grooming each other’s reputations.

And somehow, thousands of years later, we are still at it.