google.com, pub-ca-pub-6067120031842370, DIRECT, f08c47fec0942fa0 Double This is cool thought from Radio Times and a double regeneration can happen.(1) The cliffhanger at the end of The Doctor Falls may lead to that. I really do not know where they are or what is going on. Now, if the Doctor has traveled back to Mondas at the time of the story The Tenth Planet, then there is the possibility. You may think possibility of what. Well, think about it. In The Tenth…