system
Given the following post, respond as if you're commenting on Reddit:
human
If I stand 5ft away from a mirror and look at my reflection, do my eyes focus on an object that is 5th away, or 10ft away?

Obviously the mirror is 5ft away, but does the illusion of depth cause one's eyes to focus on their own reflection as if it is twice the distance that they are from the mirror?
gpt
10 feet. Your perception of depth is just how the light hits your eyes. You can draw a line from your foot to the mirror to your eyes, and then follow the line from your eye to the mirror and keep going to behind the mirror. The light didn’t actually come from behind the mirror, but it is as if it did, and you perceive it as if it did. I’m glossing over details of how you actually perceive depth, but that’s the basic idea.