While I think the code is cool, why we can do this is just because we have waited 20 years. A MPEG1 decoder can run in software on a reasonable ARM9 core from 1

While I think the code is cool, why we can do this is just because we have waited 20 years. A MPEG1 decoder can run in software on a reasonable ARM9 core from 15 years ago, and desktop processors from 20 years ago can probably do it as well.