Here's a simple explanation: https://news.ycombinator.com/item?id=34726719 https://news.ycombinator.com/item?id=34726719. Basically, with a sufficiently good lo

Here's a simple explanation: https://news.ycombinator.com/item?id=34726719 https://news.ycombinator.com/item?id=34726719. Basically, with a sufficiently good lossy compressor, you can use entropy coding to encode the difference between the decompression output and the original file.