For a moment Kirk forgot about the game. He simply stared at Spock from across the table, mind racing. He couldn't possibly be the Spock from the Mirror Universe - that one had been the same age as his own and had sported a sinister-looking goatee. He frowned. "What do you mean, Spock? An alternate version of my own universe? I suppose it's not out of the question - I've visited one myself - but how do you know?"