The encyclopedia
Copy

The Promise

The effect

"You can picture the result before you've bought the thing."

The method

Vague benefits ('better marketing') don't activate imagination. Concrete outcomes ('your first 100 newsletter subscribers in 30 days') do.

White hat
2/10
Most common usage on the angel→devil scale
The ethics spectrum

Same hack. Three very different choices.

White hat

Outcomes you can typically deliver, with the conditions stated.

Grey hat

Best-case outcomes presented as typical.

Black hat

Outcomes you've never actually delivered.

The template

A formula you can steal

[SPECIFIC RESULT] + [TIME FRAME] + [CONDITIONS] = a vivid promise.
Spotted in the wild

Where you've already seen this

  • Headspace's 'Less stress in 10 days' on its app store screenshots.
  • Basecamp's 'Calmer projects in 30 days or your money back'.
  • Couch to 5K's literal 9-week, 3-runs-per-week structure.
When to use it

Hero headline. CTA labels. Onboarding milestones. Any place where 'better' could be replaced with a number, a deadline, and a verb.

When NOT to use it

When the outcome depends heavily on user effort you can't quantify. Reframe as conditional ('users who do X typically see Y') instead.

The 5-minute practice

Try the trick today

Rewrite your hero headline as: '[Specific outcome] in [time frame] — even if [common objection].' Compare conversion for one week.

Don't get hacked
Want to avoid this trick being run on you? Take the AI Marketing Course →

Free Marketing Hacked module included. See more cautionary tales and learn the playbook from the inside.

See it in action

7 teardowns use this trick

Visibly clearer skin in 28 days — or your money back.
Landing page
Grey
The 'Routine in 30 Days' DTC Landing Page

A skincare brand turns a moisturizer into a transformation story using social proof, specificity, and a perfectly placed scarcity cue.

5/10
DTC / BeautyReveal the trick →
The Cold Sales Email That Actually Gets Replies
Email
White
The Cold Sales Email That Actually Gets Replies

Six lines. Four tricks. One reply rate that beats the agency average by 4×.

2/10
B2B SalesReveal the trick →
Checkout
Checkout
White
The Checkout Flow That Doesn't Lose People

Endowed progress, smart defaults, and loss-aversion turn an abandonment cliff into a smooth glide.

2/10
E-commerceReveal the trick →
Connect your calendar to auto-create meeting notes
Onboarding
White
The Notion Onboarding That Hands You a Workspace

How a five-screen wizard turns a blank canvas into a personalized workspace — and into emotional sunk-cost before you've sent a single doc.

2/10
Productivity SaaSReveal the trick →
Don't break your streak.
Mobile app
Grey
The Duolingo Streak That Refuses to Let You Quit

How a single number on a mobile home screen turns a casual app into a daily habit — by weaponizing what you'd lose, not what you'd gain.

5/10
EdTechReveal the trick →
The issue tracker you'll actually enjoy using.
Landing page
White
The Linear Landing Page That Makes You Want to Switch Tools

Status signaling, named villains, and pristine fluency turn a project tracker into an identity decision.

2/10
B2B SaaSReveal the trick →
The Morning Brew Subject Line Formula
Email
White
The Morning Brew Subject Line Formula

How a newsletter grew to 4M subscribers using a curiosity-gap-and-payoff formula in every subject line — and why it doesn't feel like clickbait.

2/10
Media / NewsletterReveal the trick →