==Fundamental interaction== 

 The reason I changed the strong interaction to infinite range with no distance dependence is that if the strong interaction dropped off at all, confinement would not exist because it would not take infinite energy to separate two quarks.  See the section on the strong interaction on the Fundamental interaction page and the second paragraph of Colour confinement (I believe the first paragraph has a mistake in saying that the force increases with distance, but I want to think about that more before I change it).  Let me know if you have further questions or want clarification on anything.  -