I hope that potato looking dude is really just a potato on a stick.
I'd be happy if, instead of being bigger on the inside, this tardis was denser and actually made of ginger spice cake.
I mean, if this was the case all along, you gazillion doctors are looking a little foolish aren't you?
There better be like six cakes worth of cake in there.
Now take your silly hat and scram!
Just as I thought: rotten!