Harry Potter and the Methods of Rationality - 10th anniversary celebration

On March 14th, 2015, Harry Potter and the Methods of Rationality made its final post. Wrap parties were held all across the world to read the ending and talk about the story, in some cases sparking groups that would continue to meet for years. It’s been ten years, and I think that's a good reason for a party!

If you were there a decade ago, maybe come talk about how things have changed.
If you found HPMOR recently and you're excited about it (surveys suggest it's still the biggest on-ramp to the rationalist community, so you're not alone!) this is an excellent chance to meet some other fans in person for the first time!
If you have never read it, but want to hear why a fanfiction is so significant to us, we would love to pitch it to you!