The Quartet

 If you're asking about the potential length of an English version of "The Quartet" (Bộ Tứ) Vietnamese novel, I can provide an estimate:

For a complete English language novel version of "The Strategic Quartet - New Era" with 30 chapters divided into 5 parts as you've outlined earlier, the approximate length would be:

• A typical novel chapter ranges from 3,000-5,000 words in English
• With 30 chapters at an average of 4,000 words each: 120,000 words total
• This would translate to approximately 400-500 pages in a standard printed book format

Breakdown by parts:

• Part 1 (Chapters 1-5): ~80-100 pages
• Part 2 (Chapters 6-10): ~80-100 pages
• Part 3 (Chapters 11-15): ~80-100 pages
• Part 4 (Chapters 16-20): ~80-100 pages
• Part 5 (Chapters 21-25): ~80-100 pages

The page count could vary depending on:

• Font size and type
• Page margins
• Line spacing
• Whether illustrations are included
• How dialogue-heavy versus description-heavy the text is

This would be comparable in length to many science fiction novels and would provide sufficient space to develop the complex AI characters, political scenarios, and philosophical questions the story appears to explore.

Would you like me to suggest how the 30 chapters might be structured across the 5 parts based on the content I've seen so far?