How much is left if you skip all the #ifdef BUGS code?
Oh, that was covered in the article : "...compress down to 8TB..."
Well, removing junk is a type of compression..
(I see by the regular single downvotes on almost all of these posts that we are in the presence of a singular MS shill. Must be getting lonely, and this must be so bad for them only one bothers to show up to do their duty)