Board Thread:The Flash discussions/@comment-4588264-20160705003334/@comment-1228139-20160705052349

Interesting theory. I was thinking, if this were to be true, then maybe Eddie was born as a twin and his twin Malcolm was stillborn in the original timeline, but after Barry's saving of Nora, a time boom is created where Eddie is stillborn and Malcolm lives. Whereas Eddie was a nice guy if a bit cocky at times, Malcolm will be a complete and utter dick similar to Hartley Rathaway pre-2x17 and will steal Iris' heart while rubbing it in to Barry, be a respected cop while Barry is seen as a nerd, etc, until he eventually becomes Cobalt Blue. Because Malcolm takes Eddie's place in history, Eobard is still able to be born, he just has a different forefather this time.

Or hell, maybe both Eddie and Malcolm are born, it's just that Eddie decides not to be a cop or never transfers to Central City and Malcolm does.