> There are only so many ways to connect Lego bricks which is the part I'm trying to understand. There are only so many ways to arrange the sample bits in an a

> There are only so many ways to connect Lego bricks which is the part I'm trying to understand. There are only so many ways to arrange the sample bits in an audio file 3 minute long, yet an audio file can contain copyrightable music. There are only so many combinations of characters that could occur in a reasonable sized book. There are only so many ways to color pixels in a photograph. Etc.