Theory How thriller bark came in paradise.

#1
A question I have asked myself a few years ago, became clear in recent chapters.
The biggest ship in the world, Thriller Bark, has it's origins as a city in westblue. How it became a ship is unclear, but we know Iceburg wants to do the same with Water Seven, so maybe Tom helped with it.
When the strawhats arrived at Thriller Bark it was sailing at the end of Paradise, the first part of the grand line. But if you look at the worldmap, you can see westblue is on the other side of the red line. My assumption is that for a ship as big as this one, it is impossible to cross reverse mountain. And going under seems even less possible. So how did it cross the red line?
We learned that Moria came to Wano to steal some very strong corpses like Ryuuma (and I think Oars was also there). During that time Kaido was also there and finished the whole Gecko Moria crew.
We recently learned Kaido can lift whole islands with his power. My guess is that he beat Moria and flew his ship over the red line to Paradise, because Moria was not worthy of being in the new world. Since then Moria stayed at the end of paradise collecting the shadows of pirates that conquered the first half of the grand line to later return with an even stronger army.
What do you guys think?
 
#5
It's possible that being so big is somehow helpful for crossing the Calm Belts, or it has a seastone lining courtesy of the World Government after Moria achieved Shichibukai status. That would explain how it moved from West Blue into the New World.

As for crossing from the New World into Paradise, I don't think there's any reason to assume that Thriller Bark's size would necessarily preclude bubble coating and passing under the Red Line. The hole directly below Mary Geoise is more than large enough for Fishman Island to float freely, you don't even seem to be able to see the Red Line from Fishman Island, so I have to figure that Thriller Bark could pass through there.

I'm not sure Thriller Bark would be capable of docking at Fishman Island, but it could float around long enough for the Log Pose to lock onto the next island.
 
Top