◆ Open question with clear boundaries
A defined answer cannot yet be given from the accepted evidence. Conditionally, the preferred constructive model says that genuine prior justification followed by fully culpable mortal sin results in present loss of the justified state; the extraordinary initial mode does not itself prove immunity, but this record does not establish that the mode can never matter.
◆ Open question with clear boundaries
The exact question cannot presently receive a passage-specific answer. The controlling text and supporting source package for Lumen gentium 16 are absent, so no quotation, condition map, modal classification, or passage-specific theological-status assignment is supportable.
◆ Catholic answer with defined limits
Lumen gentium 16 says that people who, through no fault of their own, do not know Christ’s Gospel or his Church can attain salvation if they sincerely seek God and, moved by grace, strive to do God’s will as known through conscience. This is a conditional possibility, not automatic salvation, and the passage retains the Church’s missionary duty.
◆ Catholic answer with defined limits
No. Invincible ignorance does not itself save, and freedom from culpability for a specified ignorance is not by itself sufficient for salvation.