Review of The Butterfly Effect (2004) by Sy19890515 — 25 Nov 2015

There's dead loop in the story. Evan can travel time only if he has his diaries. But the reason he wrote diaries is because he suffered from memory loss when he was a child. And the reason he suffered from memory loss is because the future-him travelled back to the past-him's body.

So imagine the original case: he grows up without memory loss, then he has no reason to write diaries, therefore he won't be able to time travel and cause himself a memory loss.