[There's a conversation they could have about that one day...though in his case, the person he's devoted himself to does care. But even if he didn't, Chang Geng wouldn't even mind.]

That's not a bad idea though I doubt everyone would think so.

[It would be interesting to imagine though.

He made a thoughtful hum..]

While the mechanics of how something works is fascinating, it isn't the most important thing. A person who raises crops may not know why plants grow but that doesn't mean what they do know has no value.

[Then he smiled a little wryly.]

If you aren't an expert, then I am even less of one. [After all, they didn't even come from the same place.] That is why, whatever you are comfortable sharing is fine. And, in return, if you want I can share knowledge about something from my world as well.