Board Thread:General Discussion/@comment-4854965-20150311010722

So, I was thinking about the episode and a theory popped into my head: What if the brother is Stanford Pines, but after he got sucked into the portal (or some major event surrounding then) Stan (the one we know) pulled a Parent Trap. In my head-canon, that might explain why the Mystery Shack didn't exist x-many years ago when Mabel and Dipper went back in time in The Time Traveler's Pig (when one of the brothers popped his head outside).

Whatcha think? 