Your Brain Hates Loose Ends

Here’s something the neuroscientists have confirmed that most of us already know in our gut: our brains cannot tolerate an incomplete story.

When we encounter a situation — a terse email, a missed deadline, a colleague who goes quiet in a meeting — our brains don’t wait for more information. They get to work immediately, filling in the gaps, connecting the dots, and arriving at a conclusion. Fast.

This is called predictive processing, and it’s one of the brain’s most essential functions. We are, at our core, pattern-completion machines. Uncertainty registers in the brain much the same way a physical threat does — it activates our stress response and demands resolution. So the brain obliges. It writes a story. It closes the loop.

The catch? That story is often more fiction than fact.

We’re not making things up because we’re irrational or careless. We’re doing it because that’s exactly what our brains are designed to do. The story feels real — completely, unquestionably real — because to our nervous system, it is.

Think of it this way: you are always writing a screenplay. Your brain is always in the director’s chair, casting the characters, assigning motivations, deciding what the scene means and where it’s heading. And then you live inside that screenplay as if it’s simply “reality.”

The Chain That Drives Everything

Here’s where it gets consequential.

That screenplay — the story your brain just wrote to close the loop — doesn’t stay on the page. It immediately generates an emotional response. And that emotional response drives behavior. Every time.

Story → Emotion → Behavior.

Your boss skips your update in the all-hands meeting. Your brain writes: “She doesn’t value my work.” That story generates frustration, maybe even a quiet resentment. That emotion leads you to pull back, contribute less in the next meeting, start polishing your resume.

Or: a direct report misses a deadline. Your brain writes: “He’s checked out.” That story generates impatience. That emotion leads you to micromanage, to stop delegating, to have a very different conversation than the situation might actually warrant.

Most people only notice this chain at the behavior end — when something goes sideways, when a relationship gets strained, when a decision lands wrong. But the behavior is just the final act. The screenplay was written much earlier.

Why This Is a Leadership Problem — and Responsibility

Everyone writes screenplays. But leaders write them under conditions that make the stakes exponentially higher.

Leaders operate constantly in ambiguity. Incomplete information, competing priorities, fast-moving situations where the full picture is rarely available. That’s the environment in which our brains are most aggressively filling gaps. Which means leaders — by the very nature of the job — are writing a lot of screenplay.

And here’s what makes it a responsibility, not just a personal challenge: an unexamined screenplay doesn’t stay private.

The stories leaders tell themselves shape how they show up. They shape the decisions they make, the signals they send, the tone they set, the people they champion and the people they write off. They shape the culture. When a leader unconsciously casts a team member as the villain — or as incapable, or as uncommitted — that story radiates outward in ways the leader might not even see.

But there’s a second layer here that’s just as important.

Leaders aren’t just the authors of their own screenplays. They are the directors of their team’s collective story. Their job is to hold the vision of where the story is going — the destination, the purpose, the shared arc — and to help each person on the team find their role in it.

That’s hard to do when your own screenplay is running on autopilot. And it’s even harder when your team members are each writing their own screenplays too — filling their own gaps, generating their own emotions, acting from their own unchecked narratives.

The leader who can’t recognize this in themselves will struggle to help others navigate it. And the leader who can? They have access to a different kind of influence entirely.

Coaching: Moving Into the Director’s Chair

This is exactly where coaching does its most important work.

A good coaching conversation doesn’t just problem-solve. It surfaces the screenplay. It creates enough space for someone to step out of the scene they’ve been living inside and ask: “Wait — is this actually what’s happening? Or is this the story I wrote about what’s happening?”

That’s not a small thing. Most people have never been invited to distinguish between those two. They experience their interpretation as reality, full stop. Coaching introduces a different possibility: that the story is a story, and that you have more authorship over it than you realized.

From there, the questions become actionable:

• What do you actually know, versus what has your brain filled in?

• Is this the script you want to be running?

• What would you need to believe differently for this situation to feel different?

• How might you rewrite this scene?

These aren’t abstract philosophical questions. They’re practical ones. The leader who learns to ask them — of themselves and, in time, of their team — gains something valuable: the ability to respond to what’s actually happening rather than to the story they’ve unconsciously constructed about it.

And that capacity — for awareness, for intention, for authorship over your own narrative — is what allows a leader to genuinely direct. Not just react. Not just manage scenes as they come. But hold the larger story, orient the team toward the destination, and help people find their way back to the script that matters when they’ve gotten lost in one of their own.

You Are Always Writing the Screenplay

You can’t stop your brain from doing what it does (nor would you want to). The gap-filling, the story-making, the closing of loops — that’s just the operating system. It runs whether you’re aware of it or not.

The question isn’t whether you’re writing a screenplay. You are. We all are.

The question is whether you know you’re the writer.

And whether, when it matters, you’re willing to step into the director’s chair. Have a conversation with someone, identify what script your brain’s been writing and decide what script you want to write.

Andy Scantland is an executive coach and the founder of Upside Leadership. He works with founders, senior leaders, and high-growth teams to build the awareness and leadership capacity that accelerates both people and organizations.