Talk:Sunset Shimmer/@comment-24208499-20131207110722/@comment-10390252-20140120193215

@Jykale,

I don't know if this is canon or just the fanon from the fanfic I read but I heard that the mirror needs the conjunction of three stars in  the human world to generate the necessary mystical conditoins to open the portal. This happens every 30 months, so that is the only time the portal can open.

I suppose it is possible that Twilight and the other three alicorns could brute-force the connection from the Equestrian side but that could have incalculable side-effects. It isn't the sort of thing I'd recommend except in a dire emergency.

You know, of the sort that tends to happen about twice a season in Equestria. :crazypinkie: