Gravity Falls Mysteries That Are Unsolved

Although most of the mysteries in Gravity Falls have been explained and discovered, there are still some that leave us questioning. Our first one is, what is the connection between Stan and Bill? We have yet to be told of why the two know each other if they never have conversed. Fans have been saying that the two characters are fairly similar, with their fancy dressing styles and they are both wheeler dealers. In a Gravity Falls short it began hinting at what Bill had in store for Stan, but that is yet to be seen in the show or if it will ever be input into the show if it were to continue. Now for our second one, how was ford able to stay in the other world without going insane like Fiddleford? At the time that Fiddleford went in, he was just as sane as Ford and only there for a few seconds Fiddledord went crazy. Although Ford went in for 30 years. I mean 30 years! With that on his shoulders he still has his sanity unlike Fiddleford. Both great scientists but different effects that need to be explained. Number 3, Where is Soos' dad? Now this may be short and unexplained for reasons unknown, but in a world where there is magical beings everywhere you could imagine my curiosity. His mom and dad have not been shown but his grandma has or aunt...I think. I would like to know why he left Soos or if he was abducted...it could happen in Gravity Falls.  It's just that crazy! Well that's it for this post. Thanks and goodbye!