system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: what is anti-aliasing for computer games?
gpt
The other reply specifically addresses multi-sample anti-aliasing, which is just one method of combating aliasing. To understand what aliasing is, consider what happens if you try to make a diagonal change in color on a bed of square tiles. Obviously you cannot do it; you will have a stair-step sort of effect due to the shape of each tile. This is the sort of thing that happens when trying to render graphics to a computer screen which is made up of square pixels.

Anti-aliasing methods are aimed at producing a blended edge, where the jagged edges are filled in by pixels which aren't the color of either side, but a calculated mix of the two.