system
Given the following post, respond as if you're commenting on Reddit:
human
If I'm near-sighted, why can't I hold a mirror in front of my face to look at something in the distance behind me and see it clearly?
gpt
Because the object you're looking at isn't on the mirror in front of you. If there is a 30 foot distance between you and the object, and you put a mirror between you, your eyes still have to focus 30 feet away. the mirror isn't displaying the image like a monitor, it's merely reflecting it.