Hardly a deduction, that was an observation.

[Look at him, he's talking to a rabbit. This is his life now.]

You don't seem to be animatronic in any way. [That would be his first guess, if someone was going to make a talking rabbit, they would make it a robot. He takes out a magnifying glass to observe closer.] Have rabbits so changed as to become sentient in the 22nd Century?