Source
When this applies
when internal functional experts (marketing says no demand, engineering says not viable) both reject a product idea you intuitively believe in
The takeaway
When you believe in a product that creates new consumer behavior rather than serving an existing one, market research and internal expert consensus will systematically underweight it, so leadership conviction (and willingness to bear personal risk) becomes the deciding factor.
Why it works
No market research could reveal demand for a behavior that didn't yet exist (walking around in a private audio world); only a founder willing to stake personal credibility could push it through organizational resistance.
One level up
Categorically new behaviors can't be validated by asking people what they want; they must be built and shown.
Where it stops holding
This stops working when the leader's intuition is wrong — the same move could have destroyed Morita's career and the product if it had flopped; it is a high-variance bet only justified by sufficiently strong personal conviction and willingness to accept the downside.
Detail
situation: Marketing said no one wants to walk around listening to music alone; engineers said low power wouldn't produce good enough sound without speakers.
decision: Morita personally championed the stripped-down headphone cassette player and promised to resign if the first 30,000-unit run didn't sell by year end.
outcome: It sold through the initial run in one month, then tripled sales month over month, eventually selling 250 million units over 20 years.
lesson: A founder's conviction, backstopped by personal accountability, can overcome both marketing's demand skepticism and engineering's technical skepticism to create an entirely new product category.
In their words
I do not believe any amount of market research could have told us that the Sony Walkman would be successful, not to say a sensational hit that would spawn many imitators.