Why?

My son is now in the "Why?' stage of life. Almost everything he gets told is responded to with a "Why?" It's an interesting stage. On the one hand, it's an opportunity to educate, to inform, to teach. On the other, it's incredibly annoying. Plus, after you've said that the sun is hot because it's a flaming ball of gas, there really isn't a satisfactory answer to the question "Why is the sun a ball of gas?" other than "Because". Still, it's nice to be regarded as someone who knows everything, because I know it won't be long until I'm regarded as someone who knows nothing.