some laws…

Law of Conservation of Mass/Energy
1. In the Universe there is a finite amount of matter and energy. We cannot create any new matter or energy nor can we destroy any of the matter or energy we have for the Universe as a whole.

2. We can change matter to energy and energy to matter without gaining or losing any of either to the Universe. Examples:

3. Energy can be changed in form, from one to another, without any loss to the Universe. Examples:

4. Matter can be changed in form, or state, without any loss of matter to the Universe. Examples:

Law of conservation of bugs
Bugs can neither be created nor be removed from software by a developer. It can only be converted from one form to another. The total number of bugs in the software always remains constant.