> Yet in all the billions of mice born every year, not one was born luminescent That is random chance. There is no reason to think it won't happen next year.

> Yet in all the billions of mice born every year, not one was born luminescent That is random chance. There is no reason to think it won't happen next year. A statistician can calculate the odds - but remember that the odds are the same for every other random mutation - yet many of them happen. (many many more will not)