ELI5: Explain Like I'm 5

lz compression

LZ compression is a way of taking information, like a picture, and shrinking it so that it takes up less space on a computer. Think of it like a big squish: it takes all the information and squishes it down into a much smaller size. It does this by looking for patterns in the data it's given and reusing these patterns. It's like if you had a lot of the same toys or clothes and you only wrote down that you had "lots" of them. That would take up less space than if you wrote down exactly how many of each you had. LZ does the same thing but with much more complicated patterns.