Just a typical breakfast conversation:
4 yo (randomly): Are we being controlled by giants? Me: I don’t think so. Why? 4 yo: There is a big hand hovering over my head like this. (demonstrates with her hand over her head). I can see it! 7 yo: There would be a hole in the ceiling though. Hubby: Maybe the walls are just an illusion, like a holographic projection. 7yo: But I can touch it. Me: But have you actually touched the ceiling? (farting) oh, look the giant just made me fart!
As you can see we have many high brow conversations at breakfast.