(Based on the rest of the comment I think you left out a word and meant "that I imagine is not remotely in my actual eyesight") I suspect this is what's going

(Based on the rest of the comment I think you left out a word and meant "that I imagine is not remotely in my actual eyesight") I suspect this is what's going on, and they're not describing it well. There's a test used for perfect eidetic memory that as far as I remember no one has ever passed. The primary requirement for passing it is to be able to project what you've previously seen, "floating like a hologram", on top of a second image you're currently looking at. The two patterns combine to reveal a message or image. But kids will often describe what they're imagining as if they're doing exactly that, because they don't yet have the words or context to be precise.