Changes to Wikipedia are made available immediately on the Web, without formal peer review. Wikipedia's philosophy is that unmoderated collaboration among well-meaning, informed editors will gradually improve the encyclopedia in its breadth, depth and accuracy, and that, given enough time, the truth will win out and even subtle errors will be caught and corrected. Thus, Wikipedia allows almost anyone to edit, except for users banned for persistent malfeasance after a lengthy arbitration process. Similarly, almost every article can be edited; editing is sometimes temporarily disabled for a small number of articles due to persistent vandalism or unresolved disputes among contributors. Wikipedia has not declared any of its articles ""complete"" or ""finished"".