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I skipped Japan's university exam to write a "computational metaphysics" exam

fumi2026 Saturday, January 17, 2026

I am a 21-year-old "Ronin" (3rd-year gap student) from Japan.

Today is the Common Test for University Admissions—a mandatory, once-a-year national exam that serves as the sole gateway to university. Missing it means waiting another full year.

I spent the last 6 years of my life preparing for this single, all-or-nothing event. But this morning, I realized that the only degree I truly need is Resolve.

So, I didn't go.

Instead of taking the test, I traded my admission ticket and years of effort for the power to create Artificial Life. I dedicated this past year entirely to Rust and C++, realizing that it is 100x more exciting to be the one defining society than to be a mere cog turning inside it.

To prove—mostly to myself—that I am not dropping out because I can't do the math, but because I want to solve harder problems, I wrote a fictional entrance exam for a "University of the Universe."

It combines non-perturbative physics, higher category theory, and computational metaphysics to explore the existential dread of being an outlier.

Here is the Abstract and a sample problem.

2026 Entrance Exam: Department of Computational Metaphysics

Abstract This examination probes the candidate's fluency across non-perturbative physics, higher category theory, and computational complexity. It treats the universe not as a physical object, but as a legacy code base running on Planck-scale hardware.

Core themes: local vs. global, perturbative vs. non-perturbative, computable vs. uncomputable, self vs. other.

Problem 5: Privilege Escalation in the Universe Simulator [50 Points]

The universe is a legacy simulation running on a quantum computer with Planck-scale grid $\ell_P$. Memory is holographically allocated on the boundary per the Bekenstein bound. An attacker (physicist) attempts root access via heap overflow.

(a) Buffer Overflow via Black Hole Formation [10 Points]

The Bekenstein bound: $S \leq S_{Bek} = \frac{A}{4\ell_P^2}$

The universe's buffer is hardcoded as `uint64_t` ($2^{64}$ bits).

(i) Using $S_{BH} = \frac{4\pi G M^2}{\hbar c}$, compute minimum mass $M_{overflow}$ (in $M_P$) for out-of-bounds write.

(ii) Show $M_{overflow} \sim 10^{9} M_P \approx 20\,\mu\text{g}$ (micro black hole scale).

(iii) Conclude: the universe runs without ASLR. Physical constants are stored at predictable addresses. Black holes are heap sprays.

You can read the full exam here (Gist): https://gist.github.com/fumi2026/a6d1b9af31e1960448f5333c2a1a1425

(Note: I am currently implementing these first principles into an AI engine running locally on an iPhone X. Demo video coming soon.)

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