Do you hallucinate as a kid?

At that age, it's called "imagination"

Kids definitely do this. They fill in blanks/context with assumptions, resulting in all sorts of silly responses, for topics of sparse knowledge/certainty. They're not lying, because they think it's true. Sometimes the gap filling is wrong, but usually downright brilliant, within the context of their knowledge.

Are you sure there is an age limit for that kind of behavior in humans?

calcification is as inevitable as entropy

I replied within the context provided rather than all possible contexts. Would you also like to bring up the interpolation and extrapolation seen during problem solving in the cuddle fish, since it's related?

All kids confidently state incorrect things it's part of growing up

That is just part of being a frontend developer

My friend's son says he sometimes closes his eyes, imagines cartoons, and watches them.