Here is a game, Riftwatch. I'll ask a question. You can answer it, and then you must ask a question of your own—and anyone may answer that one, as long as they then ask a question of their own, which again anyone may answer.

It can be any kind of question. Factual, hypothetical, personal, impersonal, serious, ridiculous. Whatever you like. The only rule is that if your answer is I don't know, you have to make a guess and explain your reasoning.

If your first question is how is this a game: it is a game because there are points. I have my little chalkboard here, and you will get one point for every answer-and-question combination you provide. Three points if you make someone laugh, stumble, or gasp with either your question or your answer, or if I decide you deserve them for some other reason. And the very last person to ask a question—the one who outlasts us all in curiosity and stamina and sleep avoidance—will receive ten.

The prize is a gold coin. A real one that you can spend, I promise.

And the first question is, what is something you dreamed you would grow up to do, when you were a child?