[ He has known so many versions of Earth that it gets rather hard to track most of the time. He knows vaguely what happens and how time progresses from point A to point B. Does he understand the exact circumstances? No. But, he does remember that Serenity at one point was asleep. That was when Small Lady had been sent back, and he had the chance to meet the girl with bouncy pink pigtails along side Usagi and Mamoru. It was quite some time ago. ]

Of course you can! Maybe you shouldn't, but, sometimes you ought to. [ He reaches up and taps her nose. ] And, if the Queen of Neo Tokyo wouldn't mind a surprise trip in the TARDIS? I would be happy to oblige. It wouldn't be too far. Just a bit outside the city.