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Guess you two have never seen 'Legends of Tomorrow'. The whole problem with time travel only applies to Speedsters, not other forms of time travel.
haven´t we learned from flash that going back in time to change an event makes things worst? i guess Barry didn´t mention that to Kara ahhaha
lol what a dumb writing. Have to go to the future to protect future? Wut?? Just change the past and done.