Hello!, Just have quick questions (had a look and can't find an answer/explanation, also don't really have time for deeper research right now) about how OS X organises files and applications. Firstly, how much does the OS keep track of files and folders? Say if I have a file which is referenced by others and I were to move it to another location can I be guaranteed of a 'file not found' message where it is referenced? And is there any way to configure the OS to intelligently keep track of the locations so that the paths are updated to where the file moves to? Also (and probably biggest question) is it possible to change the location of applications by dragging and dropping without causing any problems? This would be handy as I'd like to reorganise my system and wondered whether it'd be possible to just drag some from the Applications folder to the Utilities folder. Any help is appreciated, thank you!