What is the prediction question for this Celebrities idea?
Will Princess Diana's brother's book outsell Prince Harry's memoir by the end of the year?
What are the proposed outcomes?
This binary idea proposes these outcomes: Yes; No. These are suggested outcomes, not current market prices or forecasts.
Why might this question interest an audience?
Royal family drama is always captivating, and the clash of memoirs adds another layer of intrigue.
What reporting inspired this idea?
Perez Hilton: Princess Diana's Brother Says 'There Were Others In The Palace' Who Were 'Relieved' When She Died In New Book. The source is context for the idea, not proof that any proposed outcome will happen.
What is the suggested resolution window?
The suggested window is by end of year, as recorded in the September 18, 2026 edition. It is historical context, not a live deadline; define an explicit closing date and verifiable resolution criteria before publishing a market.
Is this a live prediction market?
No. This is an AI-assisted idea published on September 18, 2026, not a live market or a statement that the predicted event is true. Review its source, timing, outcomes, and resolution rules before using it.