system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:The rule of thirds, when it comes to photography.

Having a difficult time grasping the technique. Any help?
gpt
Very simple.

Mentally draw a tic-tac-toe grid over your viewfinder. Place interesting objects or subjects at the places where the lines intersect. If the 'interesting thing' is a line itself, like a river, cloud formation, mountain range, etc, align the object with one of the lines.

Some cameras will project the grid for you, or often DSLR cameras have autofocus points at the "thirds" locations.