Filtered dossier

Hidden Mechanics

The invisible systems inside everyday objects.

  • 12 / 12
  • No visual on file
    Negotiation Frames Entry #0342

    Why questions extract more than arguments

    A position is a single point. The interests behind it are many, and only one of these can be discovered by asking, because arguing addresses the point instead.

    Adept
    The hidden part #0342

    Arguments contest a position. Questions decompose it, and only the components can be traded.

    Open file
  • No visual on file
    Negotiation Frames Entry #0339

    The reason a walk-away must be credible to work

    A threat changes behaviour only if the other side believes you would carry it out. Credibility comes from your position, not from the firmness of your voice.

    Adept
    The hidden part #0339

    A threat is priced by the listener’s estimate of your alternatives, not by your confidence in delivering it.

    Open file
  • No visual on file
    Negotiation Frames Entry #0338

    Why the word fair is a claim, not a description

    Fairness has several defensible standards that give different answers. Naming one as fair asserts a choice among them while sounding like an observation.

    Novice
    The hidden part #0338

    Fair is not an observation about an outcome. It is an assertion that one standard among several should govern.

    Open file
  • No visual on file
    Habit Loops Entry #0316

    The reason quitting is easier than moderating

    A total rule is decided once. A limit must be re-decided at every occasion, and each occasion is a fresh opportunity to decide differently.

    Adept
    The hidden part #0316

    A limit is not one decision kept many times. It is many decisions, and only one of them has to go the other way.

    Open file
  • No visual on file
    Habit Loops Entry #0315

    Why the same trigger can start two competing habits

    One cue can hold associations to several responses. Which one fires is decided by recency and context, not by which was learned first or intended.

    Master
    The hidden part #0315

    A cue does not trigger the habit you intended. It triggers whichever associate is most recently and reliably reinforced.

    Open file
  • No visual on file
    Habit Loops Entry #0314

    The reason a two-minute version beats the full version

    Frequency is set by the cost of starting, not by the value of finishing. A version small enough to start is performed often enough to become automatic.

    Adept
    The hidden part #0314

    The size of a habit does not decide how much it produces. The cost of starting decides how often it happens.

    Open file
  • No visual on file
    Habit Loops Entry #0313

    Why identity-based goals outlast outcome-based ones

    An outcome goal is satisfied and then finished. An identity has no completion point, so it keeps producing the behaviour after the target is met.

    Novice
    The hidden part #0313

    An outcome goal works until it is met. An identity has no state in which it has been met.

    Open file
  • No visual on file
    Choice Design Entry #0242

    Why grey text is a design decision, not an accident

    Contrast controls how much of a page is read. Lowering it on one paragraph is not a styling choice but a decision about what will be processed.

    Adept
    The hidden part #0242

    Contrast is not decoration. It is the setting that decides which sentences are read and which are only present.

    Open file
  • No visual on file
    Choice Design Entry #0241

    The reason a required field decides what data exists

    Optional fields are not filled at random. They are filled by an unrepresentative minority, so the resulting dataset describes respondents rather than reality.

    Adept
    The hidden part #0241

    An optional field does not collect less data. It collects data about the people willing to be counted.

    Open file
  • No visual on file
    Choice Design Entry #0239

    The reason a wizard finishes what a single page abandons

    A long form shows the whole cost before any is paid. A staged one collects investment first, and abandoning it means discarding work already done.

    Adept
    The hidden part #0239

    The progress bar does not tell you how far there is to go. It tells you how much you would be throwing away.

    Open file
  • No visual on file
    Choice Design Entry #0238

    Why the first result is clicked regardless of relevance

    Rank is cheap to read and relevance is expensive to assess. The searcher substitutes the cheap signal and experiences the substitution as judgement.

    Novice
    The hidden part #0238

    The searcher is not reading relevance and finding rank. They are reading rank and calling it relevance.

    Open file
  • No visual on file
    Platform Mechanics Entry #0300

    Why platform growth slows before anybody admits it

    The easy users arrived first. What remains are the ones who cost more to acquire and stay less, and the average conceals the change for a while.

    Adept
    The hidden part #0300

    Later adopters are not cheaper versions of earlier ones. The bend shows in cohort cost and retention long before it reaches the total.

    Open file