When MBTI Goes Viral: What South Korea's Personality Type Craze Tells Us
Posted by Cameron Nott, Consulting Psychologist and Chief International Markets Officer, The Myers-Briggs Company
4 min read.
Walk through Seoul and, among the sea of Hangul characters, you'll spot the same four Latin letters appearing on café menus, dating app profiles, billboard ads, and fortune-telling booths: MBTI. It's a phenomenon that caught the attention of CNN a few years ago, and it hasn't let up since. CNN's coverage of the South Korean MBTI craze is well worth reading if you haven't already — it captures something genuinely fascinating about how a psychometric instrument developed in 1940s America has become, for an entire generation of young Koreans, a cultural shorthand for who you are.
The piece asked me to comment, and my position was — and remains — one of genuine enthusiasm paired with a word of caution.
We're very pleased that the MBTI® assessment has found such a wide and passionate audience in South Korea. Personality type is an extraordinarily useful framework for building self-awareness, and any trend that gets people curious about their own psychology and that of the people around them is, broadly speaking, a good thing. What concerns me is when that curiosity tips into exclusion — when someone's four-letter code becomes a filter for ruling people out rather than a prompt for understanding them better.
The CNN article describes young Koreans using MBTI type to screen potential partners before a first date, bypassing what they see as the inefficiency of getting to know someone who might turn out to be incompatible. I understand the logic. Korea's MZ Generation is navigating a hyper-competitive job market, rising housing costs, and working cultures that leave little room for wasted time. In that context, anything that offers a shortcut to connection has obvious appeal. But personality type wasn't designed to be a filter and using it that way misrepresents what the instrument actually tells us.
As Katharine Cook Briggs and Isabel Briggs Myers always intended, the MBTI framework is a tool for understanding and appreciating differences — not for sorting people into acceptable and unacceptable categories. We've all heard the expression "opposites attract," and with good reason. Some of the most productive professional relationships and enduring personal ones I've encountered have been between people whose type preferences sit at opposite ends of the spectrum. The differences aren't obstacles; they're often the source of the energy and complementarity that makes those relationships work.
There's also a more fundamental issue: personality type describes preferences, not fixed traits. It tells you something about how a person tends to orient to the world — whether they draw energy from external interaction or internal reflection, whether they rely more on concrete information or abstract patterns, whether they prefer to reach conclusions or stay open to new data. These preferences are real and meaningful, but they don't operate in isolation from a person's values, life experience, emotional maturity, or the specific demands of a given relationship or role. To rely on four letters alone is to flatten something that is genuinely rich and nuanced.
None of this diminishes the value of the MBTI assessment as a development tool. In professional contexts, understanding your own type and those of your colleagues can be transformative. It shifts conversations about friction and misalignment from personal to psychological — and that shift alone can unlock a team's capacity to collaborate more effectively. It helps leaders understand how their communication style lands differently for different people. It helps individuals identify where their natural strengths lie and where they might need to stretch.
The South Korean phenomenon is, in some ways, a mirror held up to what happens when a powerful psychological tool escapes its professional context and takes on a life of its own in popular culture. The instrument becomes simplified, the nuance gets lost, and a framework designed to expand understanding ends up, in some cases, narrowing it. That's worth paying attention to — not because it undermines the MBTI's value, but because it's a reminder that the value lies in how it's used.
Used well, with proper context and a qualified practitioner, the MBTI assessment remains one of the most widely researched, widely used, and genuinely useful personality frameworks available. The fact that millions of young Koreans are curious about it isn't a problem. The opportunity is to channel that curiosity in a direction that leads to genuine insight rather than a four-letter verdict.
Read the full CNN article here →
If you're interested in how the MBTI® assessment can be applied well — in leadership development, team effectiveness, or building genuinely inclusive organisations — explore our resources or get in touch with the team.
Cameron Nott is a consulting psychologist and Chief International Markets Officer at The Myers-Briggs Company. He works with organisations across Australia and the Asia Pacific region on leadership development, team effectiveness and organisational change.
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