You don't know if it's laid out 'at random' because, again, the thing is not actually about layout.
I think you're getting a little hung up on this being 'wrong' and missing what the thing is trying to convey. Scroll down to the bits about SQL or hierarchal filesystems.
I think a critical approach you can try is that maybe these things are different in some important ways and perhaps that's why there is no obvious unified term that comes to mind to describe them and see where that takes you. 'Kragen confused some overarching abstraction he's trying to describe with "memory layout"' is likely neither true nor fruitful.
I think you're getting a little hung up on this being 'wrong' and missing what the thing is trying to convey. Scroll down to the bits about SQL or hierarchal filesystems.
I think a critical approach you can try is that maybe these things are different in some important ways and perhaps that's why there is no obvious unified term that comes to mind to describe them and see where that takes you. 'Kragen confused some overarching abstraction he's trying to describe with "memory layout"' is likely neither true nor fruitful.