An unfamiliar idea gets aired in small doses over months, in updates, side conversations, and examples, so when the formal proposal arrives the decision-makers have heard it often enough to find it sensible.
An example
The head of product development at a family-owned bakery and snack manufacturer believed the company should make high-protein snacks for gyms and convenience stores. A year earlier the idea had been laughed out of a strategy offsite as a fad. This time she started small. Her monthly updates to the leadership team each carried one competitor launch or sales figure from the category. At a quarterly review she passed around a tray of rival products without comment. Twice she mentioned the idea to the chief executive in passing, after other meetings. Over six months the sales director began forwarding her articles about the category. When she brought a formal proposal for a two-product test line, the operations head said it was about time, and the test was approved with little debate.
Why it works
Repeated, low-pressure exposure makes an idea feel familiar, and familiar ideas are liked better and judged more sensible than new ones. By the time the proposal arrives, it looks better because it no longer seems strange, and approving it is easier, since nobody is being asked to accept something they have never heard of. It works for ideas novel enough to trigger reflexive doubt, when the sponsor has months and regular contact with the deciders. The effect weakens after many exposures. Past a point, more repetition adds nothing and can start to irritate.
The thinking behind it
Robert B. Zajonc Zajonc's Attitudinal Effects of Mere Exposure (1968) reported that repeated exposure to a stimulus is enough to make people like it more: words, shapes, and faces seen more often were rated more favorably. A later review of many experiments found the effect reliable but modest, usually peaking within 10 to 20 exposures and sometimes declining after that, and exposure to something disliked can deepen the dislike. That is why the tactic spaces its mentions and stops once interest appears.
Adam M. Grant In Originals: How Non-Conformists Move the World (2016), Grant draws on the mere exposure findings to argue that unfamiliar ideas often gain acceptance only after people have met them several times. It explains how an idea laughed out of one offsite can pass a year later with little debate: by the second hearing, the deciders are weighing an idea that has become familiar, so a first rejection need not be the last word.
When it fits
The method fits ideas that are ahead of the room: a new market, a different operating model, a technology the leaders do not use themselves. Required: a long lead time, routine channels to the decision-makers such as updates, reviews, and informal contact, and a sponsor patient enough to hold back the formal ask. A decision due next week leaves too little time for it to work.
How to use it well
Plan the exposures over several months before the proposal. Use channels the deciders already attend to and vary the form: a figure in an update, an example in a review, an object they can handle, a passing conversation.
- Keep each exposure brief, factual, and free of a request.
- Let others carry the idea too. It counts for more when colleagues raise it on their own.
- Watch the response, and stop adding exposures once the idea draws interest instead of doubt.
- Bring the formal proposal when people start asking about it.
Make every mention honest. The aim is to give people time to get used to a new idea, and the proposal must still stand on its merits when it arrives.
What it costs and where it backfires
It is slow, and a decision forced by events can arrive before the ground is ready. Repetition past the point of interest turns familiarity into fatigue, and colleagues who notice the pattern may read it as a campaign. Once the idea feels familiar, someone else can take it up with no credit to you. The clean line is the accuracy of each mention: once the examples are cherry-picked or the numbers stretched to keep the idea in view, the exposure is building familiarity with something untrue.
When it is used on you
If an idea you once dismissed suddenly feels obvious, ask what has changed in the evidence and what has changed only in how often you have heard it. Judge the formal proposal on its numbers. Ask for the case against it, and test the claim on something you can check before you agree.