This is a 10M-diameter experiential installation presented at the Iwami Art Museum in the exhibition "given universe | days of wonder".
This work is titled "Inside Out". The experiential installation includes a dome made of translucent mirrored material and measuring 10 meters in diameter, a rotating geometric sculpture in six colors, and the sounds and scents of the Takatsu River. It originated from the idea of "turning the earth’s surface inside out to enclose the universe". The work was completed during a residency at the Uchida Exchange Center Gymnasium in Masuda City.
　
The rotating solid figure in the center is what I call a "PION" – a mathematical structure with four-dimensional properties. Theoretically, this figure turns the audience’s perspective inside out.*1 The universe extends infinitely outward from the earth’s surface, a sphere. However, if we were to place this PION in space, the earth’s surface would turn inside out and the universe would extend infinitely from the sphere towards the center. Scientists are trying to understand the origins of the universe by observing the edges of the universe. If all the stars in the universe were trapped inside the sphere, the light would intensify as it reached the center. The beginning of the universe, the Big Bang, would be at its extreme point.
　
What does it mean to experience an inside out space? We all have a boundary between inside and outside: our body. There is a vast internal universe called consciousness, which mirrors the outward-expanding universe.