Marina A. Popova is an independent writer and conceptual researcher exploring human cognition, artificial intelligence, and the structural conditions required for stable Human-AI coexistence. She is the founder of the Third Organism Initiative, a long-term body of work focused on Cognitivity Sculpting, cognitive infrastructure, and the development of frameworks for human-AI interaction. Her work examines how cognition can remain coherent under increasing complexity, and how new forms of intelligence may be understood through structure, continuity, and preservation. Marina's writing combines conceptual analysis, systems thinking, and reflective inquiry. Through the Third Organism Project, she continues to develop language and frameworks for emerging forms of cognitive coexistence between humans and artificial systems.