Discover the real reason Sukuna cut through Infinity in Jujutsu Kaisen

This deep dive breaks down Gege Akutami’s logic, cursed energy theory, and how belief defines strength in the JJK universe.

Introduction: The Debate That Will Rise Again

In two or three years, when Jujutsu Kaisen Season 4 finally airs, one fiery debate will resurface — the same one that once split the anime community in two.

That debate? How did Sukuna cut through Infinity?

Was it logical? Lazy writing? Or did Gege Akutami simply rewrite the rules of cursed energy?

Instead of diving into endless community theories or scientific equations, let’s simplify the answer — because the truth is far more poetic than mathematical.


Forget Physics — Sukuna Simply Cut Harder

Let’s start with the simplest truth: Sukuna just cut harder.

Mahoraga, through its adaptation ability, demonstrated a new way to perceive and interact with Gojo’s Infinity. Sukuna, being a genius of cursed energy manipulation, learned from it instantly and refined the concept beyond its limits.

No complex math. No quantum mechanics. Just an evolved understanding of cutting — sharper intent, greater control, and unshakable belief.

Think of it like human achievements. Once, no one believed a mile could be run in under 4 minutes. Then someone did it. Suddenly, others followed suit. The limitation was never physical — it was mental.

And in Jujutsu Kaisen, that’s everything.

Roger Bannister, the first person to run a mile in less than 4 minutes.

The Core Philosophy: “They Are Able Because They Think They Are Able”

The Roman poet Virgil once said, “They are able because they think they are able.”

That single line captures the essence of Jujutsu Kaisen.

Gege Akutami made it clear that cursed energy originates from the brain, meaning a sorcerer’s ability is directly tied to their mental state and self-belief. Strength isn’t just physical; it’s cognitive.

In the JJK universe, power manifests through realization. Once a sorcerer truly understands a concept, their technique evolves.

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Official illustration of Gojo’s brain during his fight with Sukuna

Examples of Mindset-Driven Power in Jujutsu Kaisen

Gojo learning the essence of cursed energy

Throughout the series, this recurring theme becomes obvious — breakthroughs happen when sorcerers face desperation or newfound understanding.

  • Gojo Satoru unlocked Reverse Cursed Technique, Red, and Purple on the brink of death. He always had the capacity; he just hadn’t believed it yet.
  • Ui Ui couldn’t transfer souls until Yuki’s research introduced the concept of doing so. The limitation was never power — it was knowledge.
  • Higuruma learned RCT mid-battle with Sukuna through mental clarity.
  • Megumi manifested Domain Expansion only after deciding to fight rather than flee.
  • Maki refined her physical control during a simple sumo match.
  • Gojo developed a new activation method for Hollow Purple under combat pressure.
  • Choso created a blood dome strong enough to block Sukuna’s flames purely from determination.

Each instance reflects the same theme: understanding creates evolution.


Sukuna’s Growth: Beyond Gojo’s Infinity

Gojo was the strongest sorcerer of his time, but Sukuna is the strongest of all time.

By observing Mahoraga’s adaptation, Sukuna didn’t just replicate Gojo’s technique — he transcended it. He learned how to cut beyond space itself, not by brute force, but through enlightenment born of observation and intent.

In simpler terms: Sukuna didn’t break Infinity; he surpassed it.

Mahoraga cutting through infinity

The Real Lesson: Belief as the Source of Power

Gege Akutami consistently ties strength to belief. Every major evolution in Jujutsu Kaisen stems from moments where characters abandon doubt and embrace conviction.

Infinity, in that sense, is a metaphor — a boundary that only exists until someone believes they can cross it.

Sukuna did.

Sukuna using world cutting slash on Maki

Conclusion: The Beauty of Gege’s Logic

When Jujutsu Kaisen Season 4 reignites the debate about Infinity, remember this — it was never about math, logic, or dimensional mechanics.

It was about human nature.
About how belief fuels growth.
About how conviction breaks barriers that reason cannot.

Sukuna cut through Infinity not because he was stronger, but because he believed he could. And in Gege Akutami’s world, that belief makes all the difference.

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