Watch a junior person and a CEO walk through the same business problem. The junior person will use about three times as many words. They'll cover all the angles. They'll explain the methodology. They'll caveat the limitations. They'll demonstrate, through sheer volume of analysis, that they've done the work.
The CEO will use four sentences. Two of which will be questions.
CEOs aren't necessarily smarter, though some of them are. They've simply internalised something most professionals don't realise until very late in their careers. Above a certain altitude, brevity functions as a credibility signal more than as a stylistic choice.
The inverse law of communication
The pattern looks like this. As you move up the seniority ladder, the expected ratio of words spoken to importance of the speaker decreases. A junior analyst is expected to walk through their reasoning at length. A senior manager is expected to summarise. A director is expected to give a position. A C-suite executive is expected to give a verdict.
Authority for its own sake has nothing to do with this. The driver is cognitive bandwidth at the top. A CEO is processing fifteen to twenty live decisions at any given moment. They don't have the headspace to absorb your detailed methodology. They need your conclusion, with enough underlying confidence that they can trust it and move.
If you communicate to a CEO the way you'd communicate to a peer, you don't sound thorough. You sound like you can't separate the signal from the noise. Which means they can't either. Which means the decision becomes harder, not easier, for them. Which means they're slightly less likely to involve you next time.
Where this trips people up
The reason this is a trap is that, for most of your career up to senior management, verbose communication has been rewarded. School rewards length. University rewards length. Early-career roles often reward length, because length signals effort.
Then somewhere around Director, the rules quietly flip. The system stops rewarding length and starts rewarding compression. Most people don't notice the change. They keep behaving the way that worked at the previous level. The signals they get back are subtle (a slight glaze, a polite redirect, a request to "send the summary"), and they often misread these as indications that the audience needed more explanation rather than less.
I've worked with directors at multiple consultancies who spent years confused about why their executive committee presentations didn't land. They were over-preparing. They were over-explaining. They were treating the executive committee like a tougher version of their old peer group. They were operating at the wrong altitude.
The compression discipline
Brevity isn't natural. It's a discipline. Three rules I teach for it.
One. Write the headline first, then the body. Most people write in the order they think (build-up, then conclusion). This produces drafts where the most important sentence is at the bottom. Reverse the order. Lead with the conclusion. Cut everything that doesn't directly support it.
Two. Trust the listener. Most over-communicators are subtly worried that if they don't explain everything, the listener will get it wrong. This worry is more about your own anxiety than about the listener's competence. Senior listeners are intelligent. If they need more, they'll ask. If you over-explain, you signal that you don't believe they can keep up. That signal is more damaging than any clarity it produces.
Three. Use silence as content. A short, declarative sentence followed by a pause carries more weight than the same sentence padded with qualifiers. The pause says "I'm confident enough in that statement to let it sit there." The qualifiers say "I'm not entirely sure I should have said this." Which one do you want senior people to hear?
The cost-benefit, again
The cost of brevity is that you sometimes feel like you've under-explained. You'll worry that your audience missed something. You'll be tempted to send a follow-up email "just to make sure".
The benefit is that you become someone senior people enjoy listening to. The opposite of an over-explainer in any executive's mental ledger is a "high signal-to-noise" person. That's the person they want in the room. That's the person they involve in bigger decisions. That's the person who gets promoted.
I'd rather be told once or twice that someone wished I'd elaborated than be quietly classified as the person who talks too much. The first one costs nothing. The second one costs careers.
"If I had more time, I would have written a shorter letter." Variously attributed, probably to Pascal. The principle has held for four hundred years and counting.
On Thursday, the one-page summary template I've watched move careers forward more than almost any other single tool. Worth its weight in headcount.