/ Human Problems/ Need to Act Fast
Decide · 03 / 04

Need to
Act Fast.

We rarely have time, attention, or full information. So we choose with confidence we haven't earned, prefer what feels safe, and react more sharply to loss than to gain. Designers shape every nudge along the way.

Biases in this category15
StrategyDesign for imperfect decisions
Watch for in designDefaults, loss framing, urgency
Common workshopsPricing design, flow architecture
All 15 biases · Need to Act Fast

The decision traps you should know.

Tap any card for the full entry. Pages marked coming soon are still being written.

Anchoring Bias

The first number we see shapes every number we judge after it.

pricing · ux-copy

Loss Aversion

Losing $10 stings more than winning $10 cheers — by about double.

pricing · ux-copy

Status Quo Bias

The current setup feels safe even when a better one is one click away.

defaults · onboarding

Sunk-Cost Fallacy

We finish what we started — even when starting over is cheaper.

strategy · teams

Effort Justification

We over-value what we built ourselves, however wobbly.

onboarding · personalisation

Default Effect

Most users accept the default — make defaults a moral choice.

forms · defaults

Decoy Effect

A third, worse option makes the option next to it look brilliant.

pricing

Scarcity Effect

Few left, ending soon — pressure cuts deliberation short.

ethics · ux-copy

Framing Effect

Same fact, different frame, different decision.

ux-copy · forms

Bandwagon Effect

We adopt beliefs and behaviours because others around us already have.

social-proof · ux-copy

Hyperbolic Discounting

We prefer a smaller reward now over a larger reward later.

pricing · onboarding

Paradox of Choice

More options feels like freedom but produces paralysis and regret.

navigation · forms

Planning Fallacy

We underestimate how long, costly, and risky our plans will be.

strategy · teams

Reactance

Tell people they can't have something and they want it more.

ethics · ux-copy

Zero-Risk Bias

We prefer eliminating a small risk entirely over significantly reducing a large one.

ethics · privacy
Keep going

Three other ways minds bend.

Too Much
Information

01 / Filter

Too Much
Information

There's too much to process. We filter — and the filtering is where bias creeps in.

11biases Browse

Not Enough
Meaning

02 / Connect

Not Enough
Meaning

Stories, patterns, and confident-sounding causes filling in the gaps.

16biases Browse

What Should
We Remember

04 / Recall

What Should
We Remember

Memory as reconstruction — peaks, endings, and the odd-one-out.

10biases Browse