And it's basically just saying that entropy is the number of ways we can rearrange the constituents of a system so that you don't notice, so that macroscopically it looks the same.
Og den siger basalt set bare, at entropi er antallet af måder, man kan omarrangere et systems bestanddele, så at man ikke ikke kan se det, så at makroskopisk ser ligner det sig selv.