Board Thread:The Flash discussions/@comment-9346948-20170510001536/@comment-3423279-20170516003214

Savitar is a dimensional traveler, he could've easily gone to other universes and it still not have happened from E-1's perspective because he didn't exist yet.

It's like how Savitar is somehow aware of Pre-Flashpoint stuff despite being from Post-Flashpoint, and it wouldn't preclude him from being capable of going to E-3's past, or any other universe's past for that matter.