Astrology's Resurgence: Why Millennials Treat It Like Myers-Briggs

What Is This?

Astrology is the belief that celestial bodies (planets, stars, moon) influence human personality, behavior, and life events based on their positions at the time of your birth. Your "sun sign" (e.g., Leo, Virgo) is determined by the sun's zodiac position on your birthday. More detailed astrology includes your "rising sign," "moon sign," and full "birth chart."^1

The modern resurgence: Astrology isn't new—it's ancient (Babylonian origins, ~2,000 years). What's new is how Millennials and Gen Z are using it: not as fortune-telling, but as a personality framework, narrative tool for self-reflection, and social bonding ritual—functionally similar to Myers-Briggs (MBTI), Enneagram, or StrengthsFinder.^2

Data:

• ~30% of Americans believe in astrology (Pew Research, 2018)^4
• 80% of Gen Z and younger Millennials "believe in astrology" (2025 survey)^5
• 62% of Gen Z and 63% of Millennials say their zodiac sign accurately represents their personality^6
• Global astrology market estimated at $12.8B in 2024, growing to $22.8B by 2031^6

This isn't about whether astrology is scientifically valid (it's not—multiple studies show no correlation between zodiac signs and personality traits).^7 This is about why people use it and what psychological functions it serves.

Why Does It Matter?

1. Personality Framework (Like MBTI, But Cosmic)

Astrology provides a rich vocabulary for describing personality without requiring psychometric tests or self-assessment questionnaires. Instead of "I'm an INTJ," you say "I'm a Scorpio sun, Capricorn rising, Pisces moon."

Why it works psychologically:

• Barnum Effect (Forer Effect): Vague, positive statements feel personally accurate ("You have a need for other people to like you" → everyone nods). Astrology descriptions are written broadly enough to resonate with most people.^2
• Self-verification: People seek information that confirms their self-concept. If you identify as a Scorpio (intense, secretive), you'll notice when you act that way and ignore counter-evidence.
• Narrative coherence: Astrology gives you a story about yourself that feels meaningful. "I'm not flaky—I'm a Gemini, which means I'm adaptable and curious." It reframes traits as features, not bugs.

Comparison to MBTI: Both lack rigorous scientific validity. Both are popular because they offer legible identity categories. The difference: MBTI tests you, astrology is given (your birth date). This makes astrology feel more "essential" to identity.^3

2. Coping Mechanism for Stress and Uncertainty

Research shows people turn to astrology during times of stress—especially stress related to relationships, career, and life transitions.^2

Study (Graham Tyson, 1982): People consult astrologers in response to stressors "linked to social roles and relationships."^2

Why now? Millennials and Gen Z face:

• Economic uncertainty (gig economy, housing unaffordability, student debt)
• Relationship instability (dating apps, delayed marriage, rising loneliness)
• Existential anxiety (climate change, political polarization, AI disruption)

Astrology offers structure in chaos. It's not predictive—it's interpretive. "Mercury retrograde" becomes a meme for when life goes wrong, giving people a narrative frame to process frustration ("Oh, that's why everything's breaking—it's not my fault, it's the planets").^2

Contrarian take: This isn't ignorance. It's adaptive meaning-making. Humans need explanatory frameworks to reduce cognitive load. Astrology serves that function, whether or not it's empirically true.

3. Social Bonding and Community

"What's your sign?" functions as icebreaker and social sorting mechanism. It creates in-groups and shared language.

Examples:

• Dating apps (Bumble, Hinge) now include zodiac signs in profiles. "I only date earth signs" is functionally similar to "I only date people who value family."^4
• Astrology memes on Instagram/TikTok generate millions of engagements. "Libras when someone asks them to make a decision" (paralyzed wojak) → instant recognition, shared laughter.
• Group chats analyze relationship dynamics through astrology: "He's a fire sign, you're water—that's why you clash."

Why this works: In an era of declining institutional affiliation (church, civic groups, political parties), astrology provides a low-barrier community. You don't need to believe deeply—you just need to know your sign and engage with the content.^4

4. Identity Formation (Especially for Young People)

Adolescents and young adults are in the identity exploration phase (Erik Erikson's developmental theory). Astrology offers pre-packaged identity options to try on.

Instead of asking "Who am I?", you get handed a partial answer: "You're a Taurus—grounded, loyal, stubborn." This reduces decision fatigue around self-definition. It also provides permission: "I'm not lazy, I'm a Pisces—we're dreamers."^3

Critique: This can limit growth. If you over-identify with your sign, you might excuse bad behavior ("I'm a Sagittarius, I can't help being blunt") or avoid challenges ("Cancers aren't good at leadership").

Counter-argument: Same applies to MBTI ("I'm an introvert, so I can't do sales") or Enneagram ("I'm a Type 4, so I'm always going to be moody"). Any personality framework risks becoming a self-fulfilling prison.

5. Understanding This Matters (Even If You Don't Believe)

If you're building consumer products, communities, or content, understanding astrology's psychological functions is valuable:

• Segmentation: People who engage with astrology are disproportionately young, female, urban, and digitally native—a high-value demographic.^6
• Engagement: Astrology content (horoscopes, memes, compatibility charts) drives massive engagement on social platforms.
• Positioning: Apps like Co-Star (astrology social network), The Pattern (personality insights via astrology), and Sanctuary (on-demand astrology readings) have raised $30M+ in VC funding.^6

Even if you think it's nonsense, your customers might not. Or more accurately: they use it as a tool for self-understanding, regardless of empirical validity.

Key People & Players

Researchers

• Graham Tyson — Psychologist who studied why people consult astrologers (1982 study: stress-driven behavior)^2
• Stuart Vyse — Psychologist, author of Believing in Magic: The Psychology of Superstition; writes on astrology as cognitive bias^7
• Toby Ord (Oxford) — Philosopher who studies belief systems and rationality

Cultural Figures

• Susan Miller (AstrologyZone) — Most-read astrologer online; monthly horoscopes reach millions
• Chani Nicholas — Popular astrologer, author, LGBTQ+ advocate; frames astrology through social justice lens
• Jessica Lanyadoo — Host of Ghost of a Podcast, blends astrology with therapy-adjacent advice

Apps & Platforms

• Co-Star — Social astrology app ($30M+ raised), hyper-personalized daily insights
• The Pattern — Personality app using astrology framework (100M+ downloads)
• Sanctuary — On-demand astrology readings via chat ($1.5M seed round)

Academic Voices

• Journal: Personality and Individual Differences — Published studies on astrology belief and personality traits^8
• Pew Research Center — Tracks American belief in astrology over time^4

The Current State

What's Working

1. Billion-dollar industry. Global astrology market: $12.8B in 2024, projected $22.8B by 2031. Apps, readings, merch, courses all growing.^6
2. Mainstream acceptance. Dating apps, career coaches, wellness brands all incorporate astrology without irony.^4
3. Community building. Astrology creates low-barrier social groups (online and offline) for people seeking belonging.^4
4. Content machine. Astrology memes, TikToks, and horoscopes generate billions of impressions monthly.

What's Contested

1. Scientific validity. Zero empirical support. Studies repeatedly show no correlation between zodiac signs and personality, behavior, or life outcomes.^7
2. Gender divide. Astrology users are ~70% female. Critics argue it's dismissed because it's associated with women/feminine interests (similar to how "rom-coms are trash" vs. "action movies are art").^3
3. Backlash brewing? Some reports suggest Gen Z is less into astrology than Millennials were 5 years ago—possible peak already passed.^9
4. Exploitation concerns. Astrology readings can cost $100-$500/session. Vulnerable people (grief, breakups, career crisis) may overspend on guidance with no proven value.

Emerging Trends

• AI-generated horoscopes. Apps now use LLMs to create hyper-personalized daily astrology content.
• Career astrology. "What job suits your sign?" content is exploding—Gen Z uses astrology for professional guidance.^10
• Astrology x mental health. Some therapists integrate astrological language (carefully) to meet clients where they are—controversial within psychology community.

Best Resources to Learn More

For Skeptics (Understand the Psychology)

• Stuart Vyse, Believing in Magic: The Psychology of Superstition — Why humans create and cling to superstitious beliefs (not astrology-specific, but applicable)^7
• The Atlantic, "Why Are Millennials So Into Astrology?" (2018) — Excellent long-form journalism on the cultural moment^2
• Skeptical Inquirer, "Why Are Millennials Turning to Astrology?" (2018) — Critical analysis from rationalist perspective^7

For Curious Learners

• Harper's Bazaar, "How Millennials and Gen Z Turned Astrology Into a Billion-Dollar Industry" (2024) — Business/cultural analysis^6
• Fast Company, "More Millennials and Gen Zs Are Turning to Astrology for Career Advice" (2026) — Recent trend piece on professional applications^10

Academic

• Preprints.org, "Astrology and Personality: A Scientific Framework" (2025) — Attempt to find correlations (spoiler: none found, but methodology interesting)^11
• International Journal of Indian Psychology, "Astrological Belief and Personality Traits" (2025) — Cross-cultural study on who believes and why^12

If You Actually Want to Try It

• Chani Nicholas, You Were Born For This — Astrology book framed as self-help/therapy
• Co-Star app — Free, popular, well-designed astrology app
• The Pattern app — Less overtly "astrology," more "personality insights based on birth chart"

Sources