I never understood this theory. Mac’s next line after Charlie’s rant confirms that Pepe Silvia is real. “Not only do all of these people exist, but they've bee

I never understood this theory. Mac’s next line after Charlie’s rant confirms that Pepe Silvia is real. “Not only do all of these people exist, but they've been asking for their mail on a daily basis. It's all they're talking about up there.”