Detailed Instructions: Given scene/plot descriptions from movies or TV shows, and given a specific question about the scene, summarize the question into a title
Q: In Stranger Things 2, they say the portal takes a lot of energy to close, and that only El has the power to close it. But in the first season, portals to the Upside-Down crop up all over the place- in the Byers' home, in the tree in the woods, and by the swimming pool. What's the difference between the Hawkins' lab portal and the other ones?
A:
Why is the portal so hard to close in Stranger Things 2, when the monster opened many in the first season?