Never ask a historian to show you history- they'll only visit the dull bits...
Peace treaties aren't the stuff of history the Doctor knows. Trade agreements aren't where the adventure happens. Peace conferences are usually pretty dull. Tom is in his element. The Doctor is bored.
But could a bored man have changed the face of history with a quiet whisper in someone's ear? And why is a minor figure like Nelson now centre stage of a conflict that never should have happened?
I'm really excited - it was great fun last Sunday to see a whisper become a rumour become a fact spreading like wildfire all over Twitter etc. No doubt