Sounio is building software that communicates the quality of its own knowledge.

Demetrios is a medical student and researcher at PUC-SP and São Leopoldo Mandic, specialising in biomaterials and regenerative medicine. With published work on Ollivier-Ricci curvature for complex networks and a submitted paper on octonion algebra (the 168 theorem), he created Sounio to bridge the gap between scientific rigour and computational practice — building the entire language, compiler, and standard library from scratch since December 2025 (souc 1.0.0-beta.5).

The name “Sounio” reflects both personal heritage and architectural philosophy: Cape Sounion (Σουνιο), where ancient Greek mariners made crucial decisions at the boundary of known waters, embodies the epistemic boundary where certainty meets uncertainty—a metaphor central to the language’s design.