Is there really no general DW spoiler/ discussion thread or am I just blind?
I really hope that Time does not turn out to be Earth. Why make a show about time/ space traveling aliens when the be-all, end-all is still Earth?!
Anyway, the title for the next ep makes a lot more sense now...
Maybe the Time-less Child is someone who used to be one of those Mauri on Time.
Not really spoilers as one thing Chibnall has been pretty good at is keeping a lid on things, just hypothesising and could be way off target.
As for Time being Earth, unfortunately these days there's an annoying obsession with filling in the blanks and sucking the mystery out of everything. So Ridley Scott had to show us where the Aliens came from and the Death Star's flaw couldn't just be down to incompetence it had to be way more important than that (still annoys me that a film designed to fill a plot hole that didn't really need filling created yet more plot holes in the process but I digress).
In terms of Who there's this constant need to explain why the Doctor loves Earth so much, I mean obviously its because it's filmed on Earth by Earthlings but that's not good enough, and nor is the fact that the Doctor just likes spending time with humans, no, there has to be something deeper. So he's half human (on his mother's side) to try and explain it, and when this doesn't work they move on.
If Time turns out to be Earth and the Mauri turn out to be advanced humans, and one of those Mauri ends up being hurled back in time to become the Timlesss Child...well suddenly the Doctor's obsession with Earth makes sense, on a subconscious level at least.
Again it's a hole that doesn't need filling but modern humans seem to have a desire for everything to wrap up neatly. I'd be happy to just accept that the Doctor is A. N. Other Timelord who thinks differently from most of their fellows and keeps being drawn back to Earth for the same reason I like holidaying on Greek islands (friendly people, great scenery, lovely food etc).
And before anyone points it out, yes this need to explain the Doctor isn't a uniquely modern thing (Cartmel Master plan etc).
Weird how this desire to re-inject mystery into the Doctor often has the opposite effect.