That long? [Well, it might put a damper on his theory somewhat, however...]

It could be an alternate reality with a different timeline. [He's read science fiction stories. He knows these things.]

I know you're not the exact same Shinji, but you're a Shinji, and that's enough for me. [Uncle is a simple, stubborn man.]

Rider. That's her only name? [It can't be a coincidence, not after everything else that's happened in the Tower, all the people he's met.] Is she a Servant?