That is very kind of you. [Not to question his sanity, that is. Most people who haven't spent a couple of years in prisons between universes tend to react to claims that there are doppelgangers out there with skepticism, at the least, and that's when they haven't been told that their surroundings aren't real.
But then again, Elena has apparently had experience with this sort of thing. Perhaps she's from a universe as prone to bizarre happenings as his.] You have? Are spatiotemporal anomalies common in your world?