Add ability to fork a conversation. I think the best way to implement this would be to allow users to duplicate a conversation. This should also be simple copying of the file with a new timestamp.

Two other related concerns:

• Should we allow users to backtrack a conversation?
• How can we improve conversation selection. As of now we just have the first message and it is hard to select the conversation especially if we allow duplication as the duplicated ones will have the same title.