Was northwest mansion mystery in an alternate universe?
Was "northwest mansion mystery" in an alternate universe to the one where Stan Brought Ford back and then the Weirdmageddon happened?
At the end of "northwest mansion mystery" McGucket looked at the computer with the countdown showing 21 hours, some minutes, and some seconds. And we can be sure it was not days, hours, and minutes, because the seconds were counting down at about one per second.
But if every episode takes place after the previously aired episode, many days and probably weeks passed until Friday, August 24, 2012, precisely a week before their birthday on August 31. With no apocalypse until the Weirdmageddon started that day.
So that leaves several possibilities.
1) maybe whatever McGucket was using to count down to the apocalypse was incorrect in the first place (an apocryphal apocalypse) or else changed by something which Dipper and Mabel had done, which changed the schedule without changing McGucket's computer countdown.
2) Maybe the countdown was months, days, and seconds, or weeks, days, and seconds, even though it would be weird to skip over hours and maybe weeks.
3) Maybe the "seconds" were a little longer than seconds,and the "minutes" were actually 144 of those "Seconds" (144 is the base-12 equivalent of 100), and the "hours" were 144 of those "minutes".
Thus each hour would have 20,736 extra-long "seconds" and 20 of those hours would have 414,720 extra-long "seconds". 414,720 normal seconds would be 4.8 days of 86,400 seconds. And if the extra long "seconds" were 1.10 seconds long that would be 5.28 days, if they were 1.25 seconds long that would be 6 days, if they were 1.333 seconds long that wold be 6.3984 days, and if they were 1.5 seconds long that would be 7.2 days.
That might give enough time for the six episodes between "Northwest Mansion Mystery" and "Dipper and Mabel vs the Future", especially if several happened each day.
4) Maybe "Northwest Mansion Mystery" Happens out of sequence, on Thursday, August 23, 2012, with the start of Weirdmageddon less than 24 hours after the last scene. But the old Mayor was alive in "Northwest Mansion Mystery" and died in "The Stanchurian Candidate", and the new Mayor acted as mayor in "Weirdmageddon part 1". So that would seem to put "Northwest Mansion Mystery"
in an alternate unvierse.
5) So maybe "Northwest Mansion Mystery" happens on August 23, 2012 in an alternate universe where the old mayor did not die and be replaced in "The Stanchurian Candidate", though of all the inhabitants of Gravity Falls he seems least likely to survive the Weirdmageddon.
So can anyone think of sixth or seventh possibilities?