And that doesn't even get into decommitting and related things, where you mark memory that you have used as no longer needed but still "there" in a variety of d

And that doesn't even get into decommitting and related things, where you mark memory that you have used as no longer needed but still "there" in a variety of different senses. Not to mention the extra fun on OSX where you can mark something as unused, but OSX makes you pinkie-promise to let it know before you start using it again. If you don't, it works, but the accounting becomes inaccurate. "Fun".