User blog comment:ReverseZoom101/Did Barry go to a different Earth before he came to E-3 (Supergirl)?/@comment-26537965-20160419141222/@comment-5636540-20160423231656

I think he was talking about Earth-2 as well. Though, it would have been super cool if they were talking about the Crime Syndicate- but I don't think Barry is ready for that just yet. It'll take some time to get there- if they ever do.