This a good idea for alternate history?

Hello,

I have been thinking about creating a timeline dealing with the lost continent of Zealandia.

The timeline would start off around 23 million years ago, with the pod being that the continent does not sink into the ocean somehow (this is ASB, right?) and still exists to this day.

Also sorry if I posted this thread in the wrong forum if that is the case, I did not know where to post this idea
 
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