Quick answer: The human brain is a calorie miser. Processing complex information burns glucose, and mental fatigue reads as a survival threat. If you force someone to decipher your message to understand you, their instinct will make them bail to conserve energy.

Relax, it’s not rejection: it’s biology. The Caveman Test measures whether your communication survives that filter or just adds to the noise.

The thing is, your supposed brilliance and complexity in communication represents a massive calorie expense in the brain of most people reading you. I spend hours looking at websites from people trying to sound smarter than they need to, and it’s exhausting. And it’s not just websites — basically any medium you use to communicate needs to follow basic rules, but above all, it can’t overload your potential clients or users.

Sometimes we think the market rewards sophistication. And yes, sometimes it does, but that’s a trap. The human brain is a calorie miser, and your brilliant message smells like a survival risk, for real.

Your instinct often rejects your message. I know it sounds too clean to say it all comes down to glucose and basic biology. Reality has more edges and human pain doesn’t fit in a diagram. But physiology doesn’t negotiate.

“If you confuse, you lose” — Donald Miller.

When you force someone to decode your corporate metaphor, their mind doesn’t think you’re deep. It thinks this consumes energy. In a world that already drains the few reserves we have left, confusion reads as danger.

Ironic, isn’t it? Making things complex has become a status symbol, when really it’s the fastest way to become invisible. Elegance gives you away.

The Caveman Test is the most honest filter there is. Donald Miller calls it the Grunt Test. The premise is as simple as it is demanding: a caveman — operating on pure instinct, with no financial education or corporate patience — should be able to look at your website for five seconds and, just by grunting, answer three questions:

What do you offer? (is it a hunting tool or a safer cave?)
How will it improve my life? (more food or less fear?)
What do I need to do to get it? (where’s the button?)

If you can’t answer those three questions in the time it takes to yawn, your communication failed. It doesn’t matter how much you spent on design or how profound you think your proposition is. I’ve seen smart brands lose customers because their website looks like a museum of their own creativity: the buy button is hidden, the main headline is a metaphor that takes three reads to get, the value proposition is buried in a paragraph nobody will read. It’s not a design problem. It’s an ego problem.

Checklist for high-precision messaging:

Can a caveman find the Buy or Sign Up button in under 2 seconds without scrolling?
Did you remove all cliches and “intellectual” language that says nothing concrete?
Does the main headline describe a survival benefit (time saved, status, health, resources) instead of a vague poetic phrase?
Does your website show the emergency exit or does it get lost in decorating the room?

The most expensive mistake in any brand strategy is narrative narcissism: trying to be the hero of the story. In any narrative that works, the customer is the protagonist and your brand is the Guide.

Let’s use the classic analogy: your customer is Luke Skywalker (someone with a problem and a destiny, but full of doubt) and you are Yoda. The Guide doesn’t seek attention for itself; it offers authority and a plan. But to be a legitimate Guide, you need to help the Hero resolve what Robert McKee calls “Soul Drama.”

The real drama isn’t the external explosion — it’s the conflict of internal values. Do I choose my safety or my integrity? My ambition or my family? Your brand becomes a Guide when it gives the hero the redemptive scene: the moment of authority and clarity that lets them resolve their internal conflict and move toward victory. If you don’t give them the map to solve their own internal war, you’re just background noise.

Customers don’t buy solutions to external problems — they buy the end of an internal frustration. A cybersecurity company thinks it sells software. The customer buys the end of the anxiety of feeling vulnerable. To create brand evangelists, you need to connect at the deepest level:

Level	Definition	Example (productivity)
External	The tangible barrier	A cluttered inbox
Internal	The emotional frustration	Feeling like work consumes your life
Philosophical	Why it’s unjust	Nobody should be a slave to their email
Soul Drama	Deep value conflict	Ambition vs. Family

Clarity doesn’t have to be boring. It has to be broccoli with chocolate.

Andrew Hunter Murray calls this sugarcoated broccoli: valuable information wrapped in a narrative that makes it digestible. Keith Oatley, cognitive psychologist, defines stories as flight simulators for the mind.

They’re not decorative entertainment: they’re social simulations that let the customer test-drive the consequences of using your product without risk.

Specificity is the cure for noise. Richard Powers puts it best: “The particularity of the world depends on stopping and looking harder.” If you’re not specific, you’re not paying attention to your customer’s world.

And if you’re not paying attention to them, your message won’t have meaning for them. Attention is the deepest resource of meaning.

The single-premise rule: if you can’t say it in twenty words, you’re still in the soup.

Hunter Murray describes the stage where everything is vague as flailing in the soup: floating in the soup, with no concrete decision about what the hell you represent. You get out with a premise built on concrete nouns, not empty adjectives.

Stop talking about “transformational innovative solutions”. Start talking about “a chair that eliminates lower back pain in forty-eight hours”. Your job isn’t to produce content: it’s to observe your customer’s reality with such granularity that your message feels real. Specificity is the source of your authority.

Write your proposition in twenty words. No adjectives. Only nouns you can touch. If you can’t, you’re still in the soup.

For a business to thrive, it must stop asking its customers to burn calories figuring out who you are. Narrative isn’t decorative: it’s an ordering mechanism that lets the brain process chaos. Being the Guide means stop being the noise of the chairs and become the emergency exit your customer is desperately looking for.

But I’m left with a doubt I can’t shake, one that digs in just when you think you’ve won. If your message only survives because it’s easy to digest, what happens when the digestion is over and real hunger returns? Well, that’s a separate topic for another time.

For now, the question that matters is this: if a caveman walked into your website today, would they know exactly how you’re going to help them survive, or would they turn around and look for an exit?

Clarity isn’t improvised: it’s learned by emulating, combining, and executing, and a brand that communicates before it has a market is already occupying a space before it exists.

Frequently Asked Questions

What is the Caveman Test or Grunt Test? A framework by Donald Miller to measure whether your communication is clear. A caveman — someone operating on pure instinct — should be able to understand your proposition in five seconds using only grunts. If they can’t, your message has more noise than signal.

How do I know if my website passes the test? Ask someone who doesn’t know your business to look at your page for five seconds and answer: what do they sell? how does it help me? where do I click? If they hesitate on any of the three, you failed.

What is Soul Drama in branding? The internal value conflict that truly motivates your customer. They don’t buy an external solution: they buy the resolution of a deep tension like ambition vs. family, safety vs. freedom, control vs. trust.

Does clarity make the message boring? Quite the opposite. Clarity removes cognitive friction. Boredom doesn’t come from clarity — it comes from vagueness.

Clarity is the entry price. What you deliver after is what makes you unforgettable.