>>16702947
Look, would you agree that in the original problem, you are more likely to have selected the box with 2 gold balls in it because the probability of selecting a gold ball from a gold and silver ball is less than the probability of selecting a gold ball from a pair of gold balls?

And would you agree that the probability of selecting a gold ball from a single gold ball is the same as selecting a gold ball from a pair of gold balls?

If you can agree to both of those things, can you agree that selecting a gold ball from among the gold balls in a box does not make one box with gold balls less likely than the other?