Not literal worlds, mathematical possibilities. Analysis like "If XYZ is true, then [conclusion 1], but if XYZ is false, then [conclusion 2]". It's not religi

Not literal worlds, mathematical possibilities. Analysis like "If XYZ is true, then [conclusion 1], but if XYZ is false, then [conclusion 2]". It's not religion, it's logic and mathematics, and we absolutely can look at all possibilities in many circumstances.