Alternative Computations — Worlds Otherwise Calculated
Ryuta Aoki
Artwork Description:
Nature computes. Life computes. Mathematics is one language through which we read these computations. As language shapes perception, mathematics shapes what a culture can recognize as pattern, proof, or error. Alternative Computations begins from two exclusions. In nineteenth-century Japan, the Meiji government institutionalized Western mathematics, and wasan — a vernacular culture of calculation once practiced as offering, play, and public festival — was displaced. Along with it disappeared not only a method, but another way of seeing the world through computation. Today, quantum computing pursues optimization through error correction, treating quantum noise as something to eliminate. In both histories, what does not serve the dominant order is named error. The installation does not revive wasan, nor does it demonstrate quantum technology. It builds an original cosmology inspired by vernacular cultures of computation. Quantum noise becomes rain. Twenty-eight sangi rods orbit overhead as the Twenty-Eight Lunar Mansions: the sky. A tatami floor forms the microcosm of tea ceremony: the earth. More than four thousand reeds evoke Ashihara-no-Nakatsukuni, the reed-covered middle world: the human realm. Together, sky, earth, and human form a spatial instrument. Embodied and ritual gestures attune this installation, shaping rain, motion, and sound. A 28-minute sonic ecology of quantum rain, natural sounds, and mechanical resonance is continuously reborn, physically unrepeatable. Technology becomes violent when it serves only efficiency, optimization, and control. But gunpowder can become either weapon or fireworks. Alternative Computations turns discarded noise into offering, resonance, and festival: a way to calculate otherwise, and let another world appear.
Project Collaborators:
Artist: Ryuta Aoki — concept, artistic direction, overall system design, all software development, including quantum computing and machine learning implementation, and 28-minute sound composition. Quantum Computing: QRC research and supervision by Professor Naoki Yamamoto, Director of Keio University Quantum Computing Center; core algorithm development by Toshiki Yasuda. Embodied Practice: Erika Fuki contributed dance and movement research; Soryo Matsumura contributed tea ceremony and ritual gesture; Shiho Sakamoto created wagashi. Sound: Kosaku Namikawa designed/developed the sound system and created individual sound materials. Kinetic / Technical: Shohei Takei led mechanical design and development; Yuki Nakama contributed mechanical 3D simulation; Daiki Kanaoka provided technical advice. Installation: Haruto Hirokado supervised installation; Mitsuaki Tomikawa constructed the tatami tea-room; Keita Uno and Ryota Hagiwara led reed installation. Production: VOLOCITEE Inc. Presented in Aoki’s solo exhibition, a special exhibition of Quantum Art Festival, at Spiral Garden, Tokyo, January 2026; 4,500 visitors over four days.
