## Citizenship is a Service
Your birth passport is a legacy constraint. Your second, third, and fourth passports are professional tools. This tool models the 'Mobility ROI' of CBI programs.
### FAQ
**Q: Why do I need multiple passports?**
A: Option value. In a world of sudden border closures and travel bans, a portfolio of citizenships is 'Freedom Insurance.' This tool models the trade-off between investment cost and the 'Mobility Power Index.' It also calculates the 'Tax-Residency Alpha'—helping you move between jurisdictions to maintain zero-tax status legally.