Gravity Falls Theories

I have many Gravity falls theories
The first is about Soos,
I think he knows a lot more than he appears. Honestly, no main character in Gravity falls could be THAT dumb! I think he's hiding
Something... But I don't know what yet.
Now for my second Theory,
I call it the Swing set theory
In dreamscapers, they start walking and see a busted up swing set.
And at the end of the episode
"Not What He Seems"
when they show the credits, it has Stanferd and his brother as kids ON the swing set. If you watched the episode, Stanferd's brother comes out of a portal.
I think the swing set has to something with how the brother got in the portal in the first place.
That is the end of my first Gravity Falls Theories, I will have more, thanks for reading!