system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:what is anti aliasing?
gpt
Take a sheet of graph paper. Make a diagonal line by filling in squares on the paper. You'll notice that from up close, it doesn't really look like a diagonal line- it's more like stairs than a ramp. You have the same problem on computers, which draw graphics by lighting up squares in a grid of pixels. Anti-aliasing fills in the squares around the line as a light grey, which makes the line appear more smooth.