User blog comment:ReverseZoom101/2 Weird things you may or may not have noticed in The Flash/@comment-3221148-20161021201228

1) Star City 2046 was stated to be one of the fluctuating possible timelines. Guess it guessed Diggle Jr. before he was actually seen 'created' after Flashpoint by us.

2) Speed Force: I ain't gonna explain shit. It's a buzzword to explain whatever nonsensical happens on screen, it's always been so.

3) How would you even come to this conclusion? You do know that Eobard is a time traveler, right? He even says that it was his traveling through time that showed him that he was destined to become the Flash's enemy (probably seeing or meeting a future version of himself).

If you are asking about Barry-2020 from the very first known timeline, he's a time remnant by 2000, with his timeline aborted and Eobard its only remaining denizen.