At the end of S9E12, the Doctor… He does, however, keep a lot of surrounding information, some of which he lists near the end of the episode. Does this include the time in the castle? That seems to be less related to what he forgot than some of the things he lists, but if he still knew that h...

I've heard humans now have the technology to change weather patterns like dispersing chemicals into cloud formations to make it rain. Would electricity from lightning kill Cybermen or would it do nothing to Cybermen?

According to the episode "Timeless Children," the source of Time Lord regeneration Obviously, this explanation is a lot of new information, but given the mystery previously surrounding the origin of the Time Lords, it would not seem to contradict anything. However, several seasons back, Amy ...

In the episode The Timeless Children (S12E10), it's stated that The Doctor Is this a safe assumption?

How does the regeneration energy in the CyberMasters not destroy them? Aren't they completely made of steel? What happens to the organic matter inside of a cyber Time Lord? Does it regrow as rotting flesh, or is it as if the Time Lord inside is not dead? How can a CyberMaster actually regenerat...