this has been confusing me for awhile so please correct me if i’m wrong.So the timeline post act 7 goes, They all go to Earth C, hang out and have a good time or whatever, then many many years later on Earth C, caliborn and calliope are hatched by gamzee because he’s immortal and just lived that long, and gamzee took them to the troll meteor which is on earth C. Then after caliborn sends john that snapchat, the kids find caliborn somewhere and then Caliborn’s masterpiece takes place? im confused

Either Gamzee is immortal due to plot armor, he got his hangs on time travel tech again, or the theory that the mini-black hole created by Jack English’s beheading was a portal to far future Earth C is true.

But other than that, yeah, you have the timeline just right.