For god's sake guys it clearly matters if one guy is up on another guy nationally. If someone wins the PV by 1 percent I guarantee they'll win the EV.
Uh, nope. While he prevailed by 2.4% in the PV, Bush would have lost Ohio if you moved about 60k votes to the other side. In 1876, Tilden won the PV with over 3%.
In theory you could obtain a majority of the EVs with only around 24% of the PV.
Again, the PV is useless.
Theoretically, yes, but in reality, national polls are an indicator of how the states will vote. 1876 was a long time ago and Tilden racked up huge margins in many states, the likes of which we will not see this year, apart from DC, maybe Utah.