Filtered dossier

Hidden Logic

Ideas that behave differently than they look.

  • 12 / 12
  • No visual on file
    Attention & Memory Entry #0181

    The reason the first and last items survive the list

    Recall of a list is reliably U-shaped. The ends are protected by two different mechanisms, and the middle is protected by neither.

    Adept
    The hidden part #0181

    Two mechanisms guard two ends. Primacy survives a delay and recency does not, which is how they are told apart.

    Open file
  • No visual on file
    Paradox & Proof Entry #0157

    Why a growing company can have shrinking margins on every sale

    Total profit and profit per unit are separate quantities that can move in opposite directions. Growth is reported in one of them and health is assumed in both.

    Novice
    The hidden part #0157

    A total is a rate times a volume. Growth in the product says nothing about the direction of either factor.

    Open file
  • No visual on file
    Decision Architecture Entry #0132

    Why removing an option can raise sales of the rest

    Retailers who cut the number of near-identical lines have seen sales hold or rise. Removing duplicates removes comparisons rather than choices.

    Novice
    The hidden part #0132

    Duplicates add comparison, not choice. Perceived variety comes from favourites present, not from lines counted.

    Open file
  • No visual on file
    Paradox & Proof Entry #0153

    Why adding a better player can weaken a team

    Individual talent and collective performance answer different questions, and the gap between them is exactly where most recruitment strategies fail.

    Novice
    The hidden part #0153

    Roles matter more than raw quality. The team that absorbs a stronger part may lose the coordination that was its real advantage.

    Open file
  • No visual on file
    Decision Architecture Entry #0131

    The reason you decide differently before and after lunch

    Across a long session of similar decisions, the safe default is chosen more often as the session goes on. Why that happens is still argued about.

    Adept
    The hidden part #0131

    Position in the queue is an unrecorded input. Effort-saving accumulates across a session while each case still gets a full justification.

    Open file
  • No visual on file
    Cognitive Bias Entry #0108

    The reason you trust a confident stranger over a hesitant expert

    Listeners weight advice by how certainly it is delivered, not by the record of the adviser. The market this creates rewards removing the caveats.

    Adept
    The hidden part #0108

    Certainty is cheap and accuracy is slow to verify. The channel rewards the signal that can be produced without the substance.

    Open file
  • No visual on file
    Decision Architecture Entry #0127

    The reason a menu with two pages sells more than one with six

    More options look generous until the person choosing them stops choosing. The tipping point between variety and paralysis is lower than most menus assume.

    Adept
    The hidden part #0127

    Abundance converts into postponement. The menu that offers everything sells whichever item asks the least of the reader.

    Open file
  • No visual on file
    Decision Architecture Entry #0138

    Why adding a third tier sells the second

    The expensive option is not there to be bought. It is there to change what the middle option looks like, and it does that job without ever being chosen.

    Adept
    The hidden part #0138

    The premium tier nobody buys is not a failure. It is the instrument that decides what the tier below it appears to cost.

    Open file
  • No visual on file
    Decision Architecture Entry #0126

    Why the default option decides more than the argument

    Whoever chooses what happens when nobody chooses has more influence than everyone who argued. Defaults are the quietest form of authority there is.

    Novice
    The hidden part #0126

    A default is not an absence of a decision. It is a decision made in advance, by somebody else, for everyone who does not intervene.

    Open file
  • No visual on file
    Decision Architecture Entry #0136

    Why a decision made by committee has no author

    Nobody on the committee would have chosen this option alone. Together they chose it and none of them can say when.

    Novice
    The hidden part #0136

    A committee decision has a vote count but no signature. The structure that pools wisdom also distributes blame.

    Open file