Board Thread:The Flash discussions/@comment-9346948-20161012044349/@comment-3423279-20161014051929

Time Remnants still make sense, in order for time to be changed the previous timeline and events need to have occurred, it's just that for those specific time remnants they've got nowhere to go now and fade away after fulfilling their purpose so that the "current" timeline can exist.

2020 Barry, 2014 Barry, and 2016 Barry all have to exist so that Current Barry can happen, but they themselves don't exist after that purpose as their times no longer exist exactly as they experienced it.

The only person who breaks the above rule seems to be Eobard, but he could easily just be messing around before he has to go die. Or he could have altered those little bits at the end of season 1 with his new knowledge that Barry no doubt spilled. But that still wouldn't change much, and Current Barry wouldn't have the knowledge of him somehow getting away.

Who knows? Is anyone here a time traveler?