[It says a lot about Dipper that he actually does run "Hi" through several ciphers before remembering that it's just a word and the person probably just... stopped using the cipher.]
WHO IS THIS? ARE YOU MY EVIL TWIN?
[He considers the phrasing there for a moment and then adds.]
I MEANT MY MIRROR BUT I SUPPOSE YOU COULD ALSO BE MY TWIN'S EVIL DOPPELGANGER IN WHICH CASE YOU WOULD ACTUALLY BE MY EVIL TWIN IN A MORE LITERAL SENSE THAN MOST PEOPLE GET.
no subject
[He considers the phrasing there for a moment and then adds.]