system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Some questions about the moving pictures.

First, some background. When Harry is on the train on the way to his first year at Hogwarts, Ron says that Dumbledore "can't be there all day," referring to the Chocolate Frog Card. In Harry's fifth year, Everard, Dilys, and Phineas all show the ability to move between portraits in entirely separate locations. Finally, in Harry's seventh year, Dumbledore's portrait seems to have retained the thoughts of the original. So here are my questions: 

1) While a person is living, does his portrait retain his consciousness? Could a person talk with himself like this?

2) Is there a Dumbledore assigned to moving between Chocolate Frog Cards, and another that goes between portraits? Are Chocolate Frog Cards for like a photograph, which doesn't seem to have the same properties, or the portraits, where the person can move between images? 

3) Are these people in the portraits considered ghosts or just shades of their former selves? Couldn't someone communicate with dead people just by having a picture painted of them? 

Thanks for your help.
gpt
Frog cards are not portraits, portraits are much more powerful and require the person to be present for days to create. Portraits Have all the memories of the person at the time it was created and there is a rumor that a persons last one has all their memories at the time of their death.