I like the idea of speaking with Feynman as well, from what I hear he was great at reducing very deep concepts into manageable pieces.
Or at least telling you when he couldn't do it anymore. I liked the clip on Youtube when he was asked about "why" magnets do what they do, and he went down to a point where you couldn't really go any further without cycling back around.
Why did a person fall on ice?
Gravity.
Ok, why did slipping occur? (Or, branch off into "What makes gravity?)
Ice is slippery.
Why is ice slippery?
Thin layer of liquid water on the surface.
Why does it do that?
The molecular structure of water is less dense as a solid.
Why does it do that?
And so on, until you reach the limits of what we know. Why does it do that? I don't know, but it definitely does it, or at least, it certainly acts like it does.