Scent-breaking
Scent-breaking is what happens when something a user acted on pointed at one specific thing, and what they encounter next contradicts it. For example, clicking an ad for ballet slippers and landing on a generic sneaker homepage. The contradiction does more than fail the user going forward; it reaches backward and undoes the reason they took the step in the first place, because the original signal turned out to mean something different than it appeared to.
Definition
A reachability failure mode in which a subsequent affordance contradicts the signal that drove the prior selection, retroactively unmaking the motivation that selected the step.
The three components of a scent-break
A scent-break requires three things in sequence:
- A prior signal that committed the offering to something specific
- A subsequent affordance whose evidence contradicts what the prior signal committed to
- A retroactive update to the user's interpretive frame that dissolves the basis for the prior selection
The third component is where motivation lives, and it's why scent-breaking is structurally tied to motivation-shaped factors specifically. Material-shaped preconditions don't have evaluation-frames that can be retroactively unmade — they're either present or absent at the moment a step needs them. Motivation routes through interpretation, and interpretation can be retroactively rewritten by contradicting evidence.
The user wouldn't have initiated the prior step if they'd known what the step actually led to. The scent of information between affordances — the consistency between what one affordance signals and what the next offers — is what allows motivation to carry across a hopscotch transition.
Total and partial breaks
Severity varies along a spectrum:
- Total scent-break: the destination dead-ends with respect to the user's anticipated pursuit. The motivation that drove the prior selection no longer applies to the situation the user is now in, and the user has to start over.
- Partial scent-break: the destination is partially relevant but requires the user to work harder to reach what the prior signal implied. Recoverable, but it still degrades the user's evidence about whether the offering's signals can be trusted going forward.
Wrong turns as decay axis
Scent-breaking is a window-of-opportunity diagnosis, but the decay axis is wrong turns rather than elapsed time. Each piece of contradicting evidence is a wrong turn, and the probability of continuation drops per wrong turn. A scent-break can happen thirty seconds after a click and end the bracket; another route can preserve scent across hours and remain viable.
This distinguishes scent-breaking from time-decay, the other major reachability failure mode. In time-decay, motivation fades as a window elapses; in scent-breaking, contradicting information retroactively unmakes the motivation that drove the prior step. Different mechanism, different remediation: time-decay calls for shorter temporal gaps, scent-breaking for signal continuity between successive affordances.
Misdiagnosis flips the remediation. A scent-break misread as time-decay prompts faster delivery of the next affordance — but the next affordance is the one carrying the contradicting signal, so faster delivery accelerates the break rather than preventing it. Time-decay misread as a scent-break prompts work on signal continuity, which leaves the temporal gap untouched.
Example
A user clicks an ad for ballet slippers. The ad's creative, copy, and image all signal ballet slippers. The destination is a generic sneaker retailer's home page — no ballet slippers in view, no obvious path to them from where the user landed.
At the moment of the click, the user's motivation was specific: buy ballet slippers. The landing page contradicts the signal that drove the click. The user's interpretive frame updates retroactively: the ad was misleading, this offering isn't oriented toward what I came for, the click I just took doesn't apply to the situation I'm now in. What ends the bracket is the next affordance unmaking the basis for the prior selection.
A softer version: the same user lands on a page that does carry ballet slippers, but only three clicks deep behind a generic category navigation. The signal isn't contradicted outright, but the user has to do additional work to confirm they're in the right place — and each step of that work is evidence that the offering's signals can't be taken at face value.