The Lewis Residence by Frank Gehry (1989–95) was prescient in exploring the power of computer rationalization in describing and fabricating sculptural tectonic elements. On the other hand, Peter Eisenman’s Biozentrum (1987) tested the computer’s ability to generate its own formal language. A vanguard attempt to digitally script the design process, the Biozentrum’s geometries emerge from abstract representations of DNA structures, manipulated through processes intended to simulate genome replication. The scaffold-like lines of Shoei Yoh’s unbuilt Odawara Municipal Sports Complex (1990–91) wood truss ceiling and constructed gymnasium Galaxy Toyama (1990–92) were verified for integrity by computer analysis, using intensive coding and virtual testing to advance a language of minimalist structural expressionism. Chuck Hoberman’s Expanding Sphere (1992) is a finely-tuned folding polyhedron that smoothly expands and contracts, opening the way to later explorations in responsive and adaptive architecture.