Every entrepreneur has experienced the version of this that makes no sense until you understand the mechanism. You spend two hours at your desk trying to solve a strategic problem and produce nothing useful. You go for a walk, step into the shower, or lie down to sleep — and the answer arrives. The instinct is to dismiss this as coincidence or to feel vaguely guilty that the useful thinking happened away from the desk. The neuroscience says the thinking happened there because you left the desk.

The default mode network

The default mode network is a distributed system in the brain — encompassing the medial prefrontal cortex, posterior cingulate, and angular gyrus — that deactivates when directed attention is engaged externally and activates during rest, mind wandering, and spontaneous internal thought. Neuroscience research has established it as the foundational system in creative cognition, contributing specifically to remote associative thinking — the spontaneous linking of conceptually distant ideas that is the cognitive signature of genuine creative insight.

The system does not operate alone during creative thought. Successful creative incubation requires dynamic coupling between the default mode network and the frontoparietal network. In non-demanding states, the default mode drives associative thinking. In moderately demanding states, the frontoparietal network takes the lead. In both cases, what drives productive incubation is the release of directed conscious attention from the problem. The brain’s creative network requires the conscious mind to step back in order to function.

The incubation effect

Graham Wallas’s 1926 four-stage model — Preparation, Incubation, Illumination, Verification — was the first systematic account of why creative breakthroughs follow periods of stepping away from a problem rather than intensifying effort. The incubation stage, where conscious attention is diverted, is where unresolved problems continue to be processed unconsciously.

Research established that incubation effects are not merely the product of distraction — the absence of conscious thought. They reflect active unconscious processing. Unconscious thought during incubation increases the mental accessibility of creative solutions, makes remote associations more available, and produces responses that diverge further from obvious answers than conscious deliberate thinking does. The mechanism that matters most is the fixation effect: focused effort narrows the cognitive search space and locks onto early, obvious solutions. Stepping away from a problem structurally removes the inhibition that was blocking insight from surfacing.

Why forcing creativity is actively counterproductive

Stephen Kaplan’s Attention Restoration Theory introduced the concept of directed attention fatigue: sustained voluntary focus depletes a finite cognitive resource by continuously suppressing distracting stimuli. Once depleted, cognitive performance degrades across problem solving, inhibitory control, and creative flexibility. Forcing creativity is self-defeating past a threshold — it depletes the attentional resource required to make the remote associations that creative thinking depends on.

The restoration of this capacity occurs through what Kaplan calls soft fascination states — environments or activities that engage involuntary attention without cognitive effort. A walk through a park, a warm shower, a commute with no phone — these contexts restore rather than tax the system. The great business ideas that arrive during them are not accidents. They are the output of a system that was finally allowed to operate without interference.

The walking evidence

Four experiments at Stanford with 176 participants by Oppezzo and Schwartz produced direct causal evidence. Walking increased creativity by 60% on average, with 81% of participants improving their performance on creative tests when walking on an indoor treadmill compared to sitting. The boost was specific to divergent thinking — open-ended idea generation — and did not extend to convergent thinking tasks requiring a single correct answer, which maps precisely onto the default mode network mechanism. The default mode supports associative breadth, not logical deduction.

Crucially, the effect persisted after the walk ended: participants who walked before a seated creative task still outperformed those who sat throughout. The movement itself was the active variable — walking indoors on a treadmill facing a blank wall still produced strong creative results, ruling out environmental novelty as the explanation.

The depletion paradox

Research on ego depletion and insight problem solving added a counterintuitive finding. When executive control resources are depleted through sustained self-regulatory effort, insight problem-solving performance improved — because reduced executive control lifted the suppression of peripheral, unconventional associations. Insight is facilitated in conditions that impair executive control: solving problems at one’s non-optimal time of day, during mild fatigue, and following taxing self-regulatory demands.

Entrepreneurs frequently report their most creative ideas arriving in the moments immediately after intense focused effort rather than during it. The depletion of the executive control system that narrows conscious search removes the inhibition of the remote associations that insight requires. The creative output is a by-product of cognitive exhaustion, not of creative effort.

The shower statistic

A survey of 4,000 people across eight countries, commissioned by Hansgrohe and developed by cognitive psychologist Scott Barry Kaufman, found that 72% of people have experienced new ideas in the shower. 14% take showers for the sole purpose of generating creative thoughts and insights.

The shower satisfies every condition the research identifies as supporting incubation: a low-demand routine task requiring minimal directed attention, mild sensory engagement that activates involuntary rather than voluntary attention, and complete physical separation from the workstation where the deliberate cognitive effort was concentrated. The shower does not produce creativity. It is simply the first environment most people encounter after work that is structurally incapable of demanding directed attention — which is why the creativity arrives there.

The architectural implication

Steve Jobs conducted walking meetings rather than seated ones — a practice that predates the Stanford research by decades but is now explained by it. The Pixar building was designed to create unavoidable physical movement between departments, generating unplanned collisions and low-demand conversations that facilitate associative thinking. Jobs attributed creative breakthroughs consistently to cross-domain exposure rather than to deliberate brainstorming — a direct expression of the default mode network’s remote associative function. The Apple case represents the deliberate architectural encoding of incubation psychology into a business environment, decades before the neuroscience confirmed the mechanism.

The practical implication for entrepreneurs is not to stop working hard on problems. It is to understand that the preparation phase — the conscious, directed effort — creates the problem representation that the unconscious system then works on during incubation. Both phases are necessary. The error is treating the incubation phase as wasted time rather than as the phase where the actual insight work happens.

Book worth reading on this

Rest by Alex Soojung-Kim Pang is the most applicable synthesis of this research for entrepreneurs. Pang documents in detail how the world’s most productive scientists, writers, artists, and business builders across history worked — and the consistent pattern is not the hustle-culture prescription of maximum hours. It is intensive morning work, protected recovery, regular walking, and the deliberate creation of conditions that allow incubation to occur. Darwin walked the same path every day. Dickens walked twenty miles. Poincaré described his mathematical breakthroughs arriving during unconscious processing with precision. Pang pulls the pattern together with the neuroscience and makes it directly applicable — not as a lifestyle philosophy but as a practical system for anyone who does work that requires genuine original thinking.

If the dynamics described here are significantly affecting your wellbeing, speaking with a psychologist is the right next step. UK: Samaritans (116 123, free, 24/7). Mind (0300 123 3393). BACP: bacp.co.uk/search/Therapists. Crisis Text Line — text HOME to 741741 (US, UK, Canada, Ireland). International: internationaltherapistdirectory.com.

This article is for educational and informational purposes only. Sources: Wallas, G. (1926), The Art of Thought, Jonathan Cape. Kaplan, S. (1995), The Restorative Benefits of Nature: Toward an Integrative Framework, Journal of Environmental Psychology, 15(3), 169–182. Beaty, R.E. et al. (2015), Creativity and the Default Network: A Functional Connectivity Analysis of the Creative Brain at Rest, Neuropsychologia, 64, 92–98. Ritter, S.M. & Dijksterhuis, A. (2014), Creativity — The Unconscious Foundations of the Incubation Period, Frontiers in Human Neuroscience, 8, 215. Oppezzo, M. & Schwartz, D.L. (2014), Give Your Ideas Some Legs: The Positive Effect of Walking on Creative Thinking, Journal of Experimental Psychology: Learning, Memory and Cognition, 40(4), 1142–1152. Shofty, B. et al. (2024), Default Mode Network Electrophysiological Dynamics and Causal Role in Creative Thinking, Brain. Jarosz, A.F., Colflesh, G.J.H. & Wiley, J. (2012), Uncorking the Muse: Alcohol Intoxication Facilitates Creative Problem Solving, Consciousness and Cognition, 21(1). Pang, A.S-K. (2016), Rest: Why You Get More Done When You Work Less, Basic Books.