system
Given the following post, respond as if you're commenting on Reddit:
human
eli5: will light ever disappear

Suppose there is a formation of mirrors such that all light that is shined unto one mirror is entirely reflected off onto another mirror. Suppose their is an infinite amount of mirrors like this, so that the light will keep bouncing off one mirror and onto another. Will there be a time where the light shined onto mirror 1 will disappear when it reaches mirror x? Just a shower thought, but I thought it was interesting since light never seems to disappear.
gpt
Yes. No object is 100% perfectly reflective. When light hits a mirror, some of it is reflected, but some of it is also absorbed by the mirror. You can have anything that's 100% perfectly reflective, so even in your scenario, each mirror would absorb a little bit of the light reflected from the previous mirror until there's none left.