The best marketing often does two things in sequence: it creates enough curiosity to earn someone’s attention, then gives them the information they need to keep it.

Effective communication often benefits from not delaying the delivery of the most important details.

In the military, there’s a term for this: BLUF (bottom line up front). It’s a practice wherein you put the most important details first to enforce speed and clarity in reports and emails. You don’t tease or delay your main point because people are busy and life-or-death decisions could be made using your information (in the military at least).

BLUF: Give them the answer first

BLUF is when you lead with your main point; after that, you provide the supporting details. The information delivered is ultimately the same, just presented in a different order.

Everyday business example

Instead of: “We’ve been reviewing the project timeline, and there are a few items we’re still working through with the vendor. We’re making progress on those, but unfortunately, it looks like they’re going to impact the overall schedule. At this point, we expect the project to be delayed by one week.”

BLUF: “The project will be delayed by one week due to a vendor issue. We’re working through the remaining items with them and will keep the team updated as we make progress.”

When marketing should break the rule

But while BLUF is about giving people the answer upfront, effective marketing sometimes works in the opposite direction: by creating a curiosity gap. Instead of closing the information gap as quickly as possible, the curiosity gap is about deliberately opening one and making people want to close it.

In marketing, stories, case studies, fundraising appeals, and some marketing copy work better with gradual reveals than immediate answers. This is because the goal is to engage the audience, convey a longer message, and encourage them to take a specific action, not just relay information.

Marketers therefore deliberately create what’s called a curiosity gap. They give people enough information to make them curious enough to engage, but not enough to instantly satisfy that curiosity. The curiosity gap is the space between what someone knows and what they want to know, which is what motivates them to click, watch, read, or learn more.

Simple example

Instead of:

“5 Ways to Improve Your Email Marketing”

You might say:

“The #1 Email Marketing Mistake Almost Everyone Makes”

The second version creates a question in the reader’s mind:

“What is the mistake? Am I making it?”

That unanswered question is the curiosity gap.

Common ways marketers use it

  • Headlines: “You’re probably doing this wrong…”
  • Email subject lines: “I almost didn’t send this…”
  • Social media: Teasing a result without immediately revealing how it happened.
  • Video: “What happened next completely changed our strategy.”
  • Ads: Revealing an intriguing benefit while withholding the mechanism.

The key distinction is that a good curiosity gap creates genuine interest and engagement. A bad one becomes disappointing clickbait, where the headline promises something intriguing, but the content doesn’t deliver.

A useful formula is: Interesting information + unanswered question + credible payoff = curiosity gap

For example:

“We increased conversions by 47% after changing one word on our landing page. Here’s the word…”

Increasing conversion is appealing; you know something happened, but you don’t yet know what changed. That tension encourages you to keep reading.

The sweet spot: Curiosity first, clarity second

“Curiosity killed the cat, but satisfaction brought it back.”

It’s an old saying, but it captures an important principle in marketing: curiosity gets attention, but satisfaction is what makes that attention worthwhile.

Although BLUF and the curiosity gap may fundamentally seem at odds in their approach, one provides the audience with the answer upfront, while the other deliberately withholds information as long as needed. Put together, they can work remarkably well in B2B marketing. The key to success is knowing when to leverage which approach.

Effective B2B marketing uses curiosity to earn the attention of its audience, then uses BLUF to deliver instant value once it has the attention. In other words, the curiosity gap can get someone to pause, click, or keep reading, while BLUF ensures you respect their time once you’ve captured their attention. If the topic is compelling enough to them, they’ll keep reading; if not, at least you got your point across.

This combination, creating enough intrigue to draw people in, then delivering value quickly, is where the two approaches become particularly powerful for marketers.