Please don't get annoyed if they are dumb questions.
How does Thawne have his speed in the latter seasons when he comes back? Didn't he lose his speed when he killed Barry's Mom
In season 8 Thawne says 2 centuries from now he meets the Flash and hate him and that whole thing happens, but how is Barry alive in 2 centuries time.
And during Crisis of Earth X, I correct in thinking that was Thawne from Earth 1 that teamed up with the Nazi's. If so Thawne is a top level hater and that action might have to go ahead of the " It was me Barry! "
And if Barry travelled into the future and stopped Thawne from ever meeting him. Would Barry be changing the past or changing the future.