Joly raises an eyebrow and laughs. "Between your time and ours, or yours and his? I'm sure either way- there's always something different. And there's probably things your world has that his forgot. I mean, I read that on our Earth people dismissed leeches for a while and then it turned out they really were the best for some things."

He's very proud of the leeches. Good for them.

"But this is your operating room? Or are you Doctor McCoy's student..?" Simon looks...well, their age. He could be a student.