About Kenji

I am a software engineer who spends too much time thinking about P vs NP problems. Originally from Tokyo, now writing code in the Bay Area.

My professional work involves backend optimization, but my passion lies in Computational Geometry and Cryptographic Primitives. I believe that code is just math that actually does something.

Currently, I am researching efficient ways to generate Voronoi diagrams in non-Euclidean spaces. If you want to talk about category theory or why 0.1 + 0.2 != 0.3 in floating-point arithmetic, buy me a coffee.

I keep this site as a place for technical notes, mathematical curiosities, and unfinished ideas that are clearer in prose than in issue trackers.

Most posts are short essays rather than tutorials. I am less interested in novelty theater than in finding concepts that remain useful after the excitement wears off.