A possible concise summary is:
The video is about how a group of Harry Potter fans in Los Angeles turned the author's video on how to rewrite The Cursed Child into a stage play called Nineteen Years Later. The author flies to LA to meet the writer and the actors, and to watch the show. He is impressed by their passion and creativity, and he encourages other fans to make their own stories. He also promotes Squarespace as a sponsor.
Here are the key facts extracted from the text:
1. The video is brought to the audience by Squarespace, a website-building platform.
2. Austin released a video two years ago criticizing the stage play "Harry Potter and the Cursed Child".
3. Six months later, Austin released a follow-up video explaining how he would rewrite the story.
4. Since releasing those videos, Austin has received numerous emails from Harry Potter fans asking him to write his version as fanfiction or collaborate with them on a fanfic.
5. A fan named Kena emailed Austin, asking for his permission to write a stage play inspired by his video.
6. Austin initially declined, but Kena and her friend went ahead and wrote the play, titled "Nineteen Years Later".
7. The play was accepted into the Hollywood Fringe Festival and has been running in theaters with sold-out performances.
8. Austin was invited to meet the cast and crew, including Kena, and watch the play.
9. Kena is the primary writer of the play and has a background in writing, having written novels since she was a child.
10. Kena's father has a PhD in screenwriting, and she grew up around writing.
11. The play features a rotating cast, with different actors playing the roles of Albus and Scorpius.
12. Boris, one of the actors, had never read "The Cursed Child" but became familiar with it through Austin's video.
13. Connor, another actor, is a huge Harry Potter fan and plays the role of Scorpius.
14. The play is a full-stage show with costumes, makeup, and sound effects, including light-up wand effects.
15. The play runs for 1 hour and 40 minutes, with a 10-minute intermission.
16. The show is scheduled to run from August 15th to August 26th at the Studio/Space Theater in Hollywood.
17. Austin was impressed by the cast and crew's dedication and passion for the project.
18. The internet played a significant role in bringing the project together, with Austin's videos inspiring Kena and her team to create the play.