“Meet a man who traverses extra-dimensional black holes on a daily basis. Alex Kaus is a theoretical physicist whose thesis advisor was Stephen Hawking. Join us as the Ph.Detours gang do what The Doctor does best: RUN!!” (YouTube)
This is a really interesting PHDtv video and chat with Alex Kaus, who is the PhD student of Stephen Hawking. He talks about his life, marathons, running, and, obviously, his work on multi-dimensional black holes.
Fascinating insight into a busy life. Keep on running onwards!