User blog comment:Keplers/Well Now That It's Happened/@comment-5052737-20131123215239/@comment-3223762-20131124001925

@Ale if you really want to cry, understand what was implied by that scene.

The "curator" is the retired doctor. With a museum of his adventures. In his final form, he chooses to look like an older version of his past self, and become 4th doctor once again, until his death from old age, which is coming fast. he wanted to be the 4th doctor for nostalgic puproses, and to relive the past. Tom baker IS the FINAL doctor.