The encyclopedia
Conversion

The Default

The effect

"The pre-selected option becomes the choice — without a real decision."

The method

Most people accept defaults. The box that's already checked, the plan that's already highlighted, the option in the larger button — all win disproportionately.

Grey hat
5/10
Most common usage on the angel→devil scale
The ethics spectrum

Same hack. Three very different choices.

White hat

Default the option that genuinely fits the most users best.

Grey hat

Default the option that's best for the business but acceptable for users.

Black hat

Default to add-ons, upsells, or data-sharing the user wouldn't choose.

The template

A formula you can steal

Identify [MOST COMMON USER GOAL] → make the matching option the visual + functional default.
Spotted in the wild

Where you've already seen this

  • Organ-donor opt-out countries seeing 90%+ donation rates vs 15% for opt-in.
  • Most SaaS pricing pages highlighting the middle plan with a colored border.
  • Zoom's 'Save chat' default-on, which has surfaced its share of meeting drama.
When to use it

When there's a clearly best option for the typical user and you'd be doing them a favor by removing one decision.

When NOT to use it

When the default benefits you at the user's expense (auto-renewing add-ons, opted-in marketing). Even when legal, it corrodes trust.

The 5-minute practice

Try the trick today

Audit every checkbox in your sign-up and checkout flow. For each pre-checked one, ask: 'Would I check this myself?' Uncheck the ones where the answer is no.

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

6 teardowns use this trick

Simple, transparent pricing
Pricing
Grey
The Three-Tier SaaS Pricing Page

An anchor, a decoy, and a default — three tricks that make the middle plan feel inevitable.

5/10
B2B SaaSReveal the trick →
The Black Friday Carousel Ad
Ad
Grey
The Black Friday Carousel Ad

How a single carousel ad layers urgency, anchoring, and pattern interrupt to stop the scroll on the busiest ad day of the year.

5/10
E-commerceReveal 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 →
The Subscription You Can't Cancel — Anatomy of a Dark Pattern
Dark pattern
Black
The Subscription You Can't Cancel — Anatomy of a Dark Pattern

A teardown of the worst kind of magic: friction asymmetry that traps customers in subscriptions they tried to leave.

9/10
Subscription / MediaReveal 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 →
FTX — How Tom Brady, Gisele, and Larry David Sold a Ponzi
Ad
Black
FTX — How Tom Brady, Gisele, and Larry David Sold a Ponzi

Sam Bankman-Fried bought A-list reassurance to make a fraudulent exchange feel as safe as a checking account. The 'Don't miss out' Super Bowl spot is now Exhibit A in a class action.

10/10
Crypto / FintechReveal the trick →