There is a mental state that researchers have been studying since the 1970s. You already know it from the inside: You sit down to a project you care about, or a problem that has you genuinely curious… and hours pass without you noticing. The work feels easy even though it’s intense. You aren’t trying to concentrate, but you become absorbed. When something finally interrupts you, the return to ordinary awareness feels a little bit jarring. It’s similar to being startled into awareness when you’re completely absorbed in a daydream.
Mihaly Csikszentmihalyi was a Hungarian-American psychologist at the University of Chicago and one of the architects of what would become positive psychology. He was interested in exploring what human experience looks like at its best. He spent decades interviewing people from wildly different skill levels and occupations. While studying musicians, surgeons, chess players, rock climbers, and factory workers, he found the same experience appearing across all of them. He named it ‘Flow,’ and found that it shows up independent of activity, culture, or level of expertise. In 1988, he published the results of his research, which he then adapted for a general audience, publishing Flow: The Psychology of Optimal Experience in 1990.
What is flow?
Csikszentmihalyi described it as complete absorption in the task. Action and awareness merging so that you stop watching yourself and simply do. Self-consciousness going quiet, time distorting, and a fundamental enjoyment of the experience. The activity itself - the process - is rewarding, regardless of external outcomes. You aren’t doing it to get somewhere, there may be positive outcomes, but that’s a secondary benefit. When you are in a flow state, doing it is enough.
One of the most interesting things about flow is the particular edge of experience that it occupies. In research using the experience sampling method - where participants were beeped at random intervals throughout the day and asked to report what they were doing and how they felt - flow states clustered reliably at one intersection: the edge of your skill level. Too easy relative to your skill level: boredom. Too hard: anxiety. Flow occupies the channel between them. And because it requires that balance, staying in flow over time means the challenge has to grow as your skill does. You cannot coast your way into it.
Since its conception, flow has been a highly sought after state for many creatives, academics, and knowledge workers. Crucially for anyone interested in education and learning science, this is exactly the edge where skill is increased and knowledge is both achieved and retained. In addition to being the best place to improve your skill, it’s also - in fact by definition - it’s more fun. The activity itself is rewarding.
Where the Research Went
The conversation about flow has only grown since then. The most serious inheritor of Csikszentmihalyi’s research program is Steven Kotler, a journalist and science writer who founded the Flow Research Collective. His The Rise of Superman (2014) studied flow in extreme athletes; Stealing Fire (2017, co-written with Jamie Wheal) extended the inquiry into neuroscience and altered states. Kotler has done more than anyone to build an applied science around the concept. Gloria Mark, a researcher at UC Irvine who studied under Csikszentmihalyi himself, brings the framework directly into the modern digital workplace in Attention Span (2023) - an examination of what constant interruption and context-switching are doing to our capacity for the deep absorption flow requires.
The concept has also traveled deep into mainstream productivity writing. Cal Newport, a computer science professor at Georgetown University, applied Csikszentmihalyi’s framework to knowledge work in Deep Work (2016), arguing that distraction-free cognitive effort produces both better output and more professional satisfaction - and that the conditions for it are learnable. Emma Seppälä, a psychologist and science director of Stanford’s Center for Compassion and Altruism Research, approaches it from a well-being angle in The Happiness Track (2016), arguing that the path to high performance runs through engagement and enjoyment rather than grinding effort - flow as the mechanism, not willpower. James Clear, a writer and speaker, calls it the Goldilocks Rule in Atomic Habits (2018) - tasks not too easy, not too hard - and delivers it to one of the largest audiences any of these ideas have reached.
Csikszentmihalyi died in 2021. The field he founded is busier than ever.
