User blog comment:Sargenttacos115/Natsu and Gajeel age Theory/@comment-73.35.222.70-20140727052423

I've been thinking about this one for a while. I'm almost certain that all the dragon slayers are from the past.

[1] Zeref knows Natsu (although this doesn't necessarily have to mean from 400 years ago) but it's implied that Zeref has been wandering where nobody has seen him for 400 years. By the way, it's also implied that Zeref is immortal and has been alive for that long.

[2] In the most recent chapters, Zeref explains that himself, E.N.D, and Natsu are all connected. E.N.D hasn't been seen since the time of dragons from 400 years before when Igneel tried to kill it. {NOTE 1: E.N.D is Zeref's most powerful demon (coincidentally a fire type)} {NOTE 2: It isn't said how long dragons can live, so if they can't last 400 years then Natsu was there during or right after all the things from 400 years ago when Igneel raised him.}

[3] Zeref keeps talking to Natsu on a personal level about a life and death choice that only he has the power to make. How does Zeref know this about Natsu?

[4] All of the Dragon slayers were raised by dragons and none of them have any other parents they can remember. Early on in the series it's noted that the average person doesn't believe in dragons because they haven't been seen in so long. So far 6 Dragon slayers have been revealed, so with Acnologia that's at least 7 dragons. With their size and power you might think that they'ed be hard to miss...

[5] Coincidentally, the Eclipse project syncing cycle is perfectly lined up with the dragon disappearances, as well as Layla Hartfilia's death (and we all know you need Celestial Spirit magic to make time traveling work.

Counter to counter arguments:

They might not have been sent through time by magic, but rather frozen in time until 400 years had past.