Companion introduction to the sixteen-paper Holographic Cosmology Series. Three bilingual documents (English + Vietnamese):1. Series Overview — summary of each paper's key result.2. Problems Solved and Remaining — 41 solved problems (31 exact, 10 strong) and 12 open problems, each presented as a question with formal name, explanation, and solution summary with DOI link.3. Open Questions — key questions addressed by the series.
Khoa Nguyen (Sat,) studied this question.