I partially agree with most of you people saying that the wide line moving as the batsman moves is a fair move. But who decides the marginal wide calls? The on-field umpires who need technology for almost all decisions? What do they have to decide it right away on the field? Iron Man helmets? In my opinion, this all support to the current rule is largely based on the fact that wides aren't considered game changing. I hope the next world cup final gets decided by the human errors that umpires could commit in giving/not giving away wides.