Apparently, they exist. Or existed at one time. They rarely erupt. Only once in 100 years, they say. But when they erupt, they change everything. Check it out:
Here’s a little clip about depression. I don’t think it’s entirely right. Most of the symptoms described here are related to Levels 5 and 6 (as opposed to Levels 2, 3, and 4), but the main points are accurate…