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Value optionality, Orchestrate chaos.

Systems Architect. DID/VC & AI, Biohacking. Occasional Student at UTokyo GSFS. Member of Japan Mensa.

Fumiya Igarashi
Featured Writing

Convexity, Uncertainty, and the Society We Build

Convex payoffs — small downside, large upside — are not just a financial concept. They describe a class of decisions that are structurally different from the ones most people make most of the time. What follows from applying this lens to how we organize collective life?

ConvexityInstitutionsUncertainty

Verifiability in an Internet That Lies

The internet was never designed for truth. It was designed for transmission. What happens to knowledge, identity, and trust when the default state of the network is indistinguishable noise?

VerifiabilityDIDTrust

The Dominant Strategy of Life

Game theory has a clean answer to "what is the optimal move." The harder question is what you are optimizing for — and whether you have correctly identified the game.

Game TheoryStrategyPhilosophy