Why Openness Distinguishes Product Managers Who Recognise New Patterns
Openness to experience, the Big Five trait reflecting intellectual curiosity, aesthetic sensitivity, and willingness to question established assumptions, is among the most consequential traits in modern product management. The work of identifying which problem is worth solving, which user behaviour signals an emerging pattern, and which industry analogue applies to the current product question depends on the PM's openness to ideas the obvious consensus has not yet absorbed.
Marty Cagan's "Inspired" (2017) and the broader Silicon Valley Product Group methodology emphasise this implicitly. The PM's job is not to execute predetermined feature lists but to discover the products that will work, which requires openness to evidence that conflicts with the team's prior assumptions. Teresa Torres's "Continuous Discovery Habits" (2021) makes the discovery emphasis explicit, building the PM's daily practice around continuous engagement with novel customer evidence.
The Six Facets of Openness in Product Work
The NEO-PI structure of openness into six facets clarifies which specific aspects of the trait matter most in PM contexts.
Fantasy. The capacity for imagination and vivid inner experience. Moderate fantasy supports the PM's ability to construct mental simulations of products that do not yet exist. Extreme fantasy can produce the PM who is so absorbed in imagining future products that the current product suffers from underattention.
Aesthetics. Sensitivity to art, beauty, and design quality. High aesthetics shapes the PM's product judgement at the level of design quality, interaction polish, and the qualities of the product that produce emotional connection. PMs low in aesthetics ship products that are technically functional but feel coldly utilitarian compared to competitors whose PMs reasoned about the aesthetic dimension.
Feelings. Receptivity to one's own emotions and to emotional content. High feelings supports the PM's empathy for users' emotional experience of the product. PMs who reason only about feature lists and quantitative metrics miss the emotional dimension that drives product adoption in consumer contexts.
Actions. Willingness to try new activities and unfamiliar approaches. High actions supports the PM's experimental discipline. PMs who score low here tend to default to the methods they already know rather than testing whether different approaches would produce better outcomes.
Ideas. Intellectual curiosity and openness to abstract reasoning. High ideas supports the PM's engagement with research, theory, and cross-disciplinary thinking. PMs high in ideas read user research papers, behavioural economics literature, and adjacent-industry case studies, and extract insights that purely tactical PMs miss.
Values. Willingness to re-examine social, political, and traditional values. High values supports the PM's questioning of received product wisdom. PMs high in values are willing to reconsider why their company builds the kinds of products it builds, which can produce strategic shifts that single-frame PMs would not propose.
The PM Work That Openness Specifically Supports
Discovery research and customer development are the most obvious applications. The PM running structured customer interviews extracts the most signal from the interviews when they are open to evidence that conflicts with the team's prior assumptions. The PM who enters the interviews already knowing what the feature should be hears only the confirming signal and misses the disconfirming evidence that would have improved the product.
Cross-functional collaboration also depends on openness. The PM works with engineering, design, marketing, sales, customer success, finance, and legal, each of which brings perspectives the PM did not generate themselves. Openness to these perspectives, even when they conflict with the PM's preferred direction, produces decisions that integrate across functions. Low openness produces the PM who treats other functions as constraints on the PM's product vision rather than as sources of input.
Investor and Hiring Selection for PM Openness
The PM hiring processes at major technology firms test openness implicitly through product sense interviews. The candidate is asked to design or critique a product, often in a domain the candidate has not previously worked in. The candidate who engages curiously with the unfamiliar domain, asks questions that probe the underlying user needs, and constructs a thoughtful product hypothesis reveals high openness. The candidate who attempts to map the unfamiliar domain to a domain they already know, and who treats the question as a test of existing knowledge rather than an exercise in product thinking, reveals lower openness.
Senior PM and chief product officer hiring at strategy-led product companies (the Apple, Stripe, Anthropic, Figma, Linear-style hiring processes) selects for openness explicitly. The candidate is expected to demonstrate intellectual range, engagement with research and adjacent disciplines, and the capacity to construct novel product arguments rather than reproduce frameworks from previous roles.
The Failure Modes of Extreme Openness in Product Management
Extreme openness combined with weak conscientiousness produces the PM pattern of constant exploration without commitment. The PM finds the next interesting customer signal, the next emerging trend, the next adjacent opportunity, and pivots the team's attention before the prior work has produced shipped value. The pattern is destructive to engineering teams and to product strategy.
The healthy PM pattern is high openness combined with the conscientiousness that supports commitment to a roadmap once the discovery work is complete. The PM explores broadly during the discovery phase and commits firmly during the execution phase. The PMs who advance into senior product leadership at strong companies reliably show this combined pattern.
How PMs Develop and Sustain Openness
Openness has substantial heritability and is moderately stable across adulthood. PMs rarely shift their underlying trait substantially through deliberate effort, but they can sustain the trait against the drift toward operational narrowing that mid-career product work often produces. The practices that sustain openness include reading across adjacent disciplines (behavioural economics, cognitive science, design research, organisational psychology), engaging seriously with research papers rather than only practitioner-facing summaries, regular conversations with peers and mentors outside one's specific industry, and deliberate exposure to product categories and customer segments outside the PM's current domain.
The PMs whose openness erodes across careers typically allow their information inputs to narrow. Their reading becomes limited to industry blogs and conference talks within their specific vertical. Their conversations become limited to immediate colleagues. The openness pattern that supported strong product judgement in their early career gives way to operational pattern matching against the specific industry they have worked in for years.
The Long-Term Compound
Openness compounds across a PM career through the cumulative effect of better strategic recognitions and product judgement. The PM who reads customer evidence with openness ships products that respond to actual underlying needs. The PM who engages with research and adjacent disciplines integrates insights that within-industry PMs miss. The PM who maintains openness against career drift continues to recognise emerging patterns through senior product leadership and into chief product officer roles.
If you want a calibration on your Big Five profile, particularly your openness score and the underlying facet pattern, before the next major product strategy decision or the next senior product leadership move, take the Big Five assessment to see your openness alongside the other four traits, with diagnostic feedback on which facets (fantasy, aesthetics, feelings, actions, ideas, values) are your particular strengths and which would benefit from deliberate development as you advance in product.