Do world generation in background while choosing dupes

[retom]

Pretty simple and straightforward suggestion:

Currently, we need to wait for the whole game world to be generated before we can name our world and start choosing and naming dupes.
As this process can take some time, the time between pressing the "New Game" button and actually being able to play is longer than necessary.

Instead, couldn't the dupe choosing screen be shown immediately while the world generation is started asynchronously in the background?
That way, most players would never have to wait for the world to be generated and could still start playing immediately after choosing their first dupes.