GUYS! I HAVE A THEORY! BILL CIPHER IS ACTUALLY ALEX'S GRAVITY FALLS PERSONIFICATION. THINK ABOUT IT, NO-ONE ELSE WOULD HAVE SUCH POWER OVER THE SHOW EXCEPT FOR ALEX. BILL'S POWERS MAY HAVE ADAPTED TO STAN'S MIND AND IS THE REASON THAT HE STILL EXISTS IN OTHER REALMS, LIKE OURS. THE BOOK, THE WEBSITE. HE IS STILL HERE AND ALEX IS BILL. WHAT DO YOU ALL THINK?