Board Thread:Questions and Answers/@comment-28265951-20160421125919/@comment-27934866-20171227191323

Season 2x11 is more or less The Return of Barry Allen storyline where Eobard comes to this time period for the first time to meet The Flash, but instead finds out who he's destined to become. In the series he's already been through this and has moved on to find out when The Flash was active because in the comic book story he arrives in the past after Barry died in the COIE.

Season 2x11 is more or less Eobard's origin story, but the more Team Flash try to prevent it, it ends up getting set in motion. In the Current Timeline Eobard doesn't exist so his personal timeline has been preserved by the Speed Force. So Time Remnants are sent to various points to play out various events in Eobard's timeline e.g. First encounter with The Flash in order to keep the timeline stable preventing further time paradoxes. Eobard's time remnants are his personal timeline not time remnants that Eobard created.

In Season 1 we're told that according to Eobard's history the Particle Accelerator incident happens in the year 2020, but due to him erasing the origins of The Flash he causes the incident to happen 7 years earlier which changes Eobard's history because the Speed Force sends his time remnant back 7 years earlier. There's also the fact Dr. McGee was supposed to die at the hands of Eobard, but due to Team Flash stopping him, Harry comes up with a way to send Eobard back to his time by joining his and Barry's speed so when he gets stuck in the past he should have what he needs, but then again Barry needs Wally's help when opening portals to the future. However when 2024 comes along when Barry goes back to stop Eobard from killing him as a child, Barry won't be erased from existence like his other self due to Eobard changing the origins of The Flash.

Time Remnants that are created are a Polchinski Paradox. It's basically when the 8 Ball goes through the corner pocket and emerges from the centre pocket intercepting itself from a few seconds ago. However because both past and future are at the same point in the present when one dies nothing happens to the other except if they're erased from existence.

The producers have no doubt had to change which time period Eobard comes from due to the fact that in the comics the Allen/Thawne family is all across the timeline e.g. Barry and Iris' children and grandchildren are born in the 30th century and I doubt they'd be going that far. There's also the fact that Eobard is Barry's great-nephew. So the producers have most likely had to draw the line between fiction and reality.