“Stranger Things” will surely leave us with some unanswered questions, but Charlie Heaton thinks we might walk away with a few big answers too. “I think what’s cool about specifically this season and going into the last [season] is that you’re really starting to unveil the curtain and get into the mythology of it all,” he told TheWrap.The first seven episodes of “Stranger Things 4” debuted on Netflix on Friday, and it’s a doozy.