User blog comment:Avataress0/Injustice/@comment-1038387-20130417143710/@comment-1038387-20130417162554

The DC Multiverse is messy either way.

I'm not sure on your version, but there has actually been a connection between time travel and multiverse travel. To explain the differences in the Legion of Super-Heroes, it's been retconned that the three versions were from different universes. Sadly, that doesn't even cover half the problems.