As you may have heard, [Theoretical Physics](http://theoreticalphysics.stackexchange.com) and [Astronomy](http://astronomy.stackexchange.com) will shortly be closing, and we are considering absorbing their questions into this site. We will soon be having a chat session (or perhaps multiple sessions) to discuss these potential merges, probably either Sunday or Monday. There are two questions I would like to pose here:

1. What needs to be discussed?
2. When should we have the chat session?

For #1, please put any ideas of what should be discussed in the chat session in answers. If you have a preference for time, please leave a comment on this question saying what times you could attend. I will figure out what a good time is tomorrow and update this question accordingly.

(I know this isn't really a proper meta question, I'm just trying to collect some information in the quickest way possible.)

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Update: it's official, **5-6 PM EDT (9-10 PM UTC) Monday** is the time! I'd encourage anyone who plans on being there to register on the [chat room schedule page](http://chat.stackexchange.com/rooms/info/71/the-coupling?tab=schedule).

Unfortunately I've just realized I can't be there until about 5:30, so whoever shows up will have to start without me. Some of the things we need to discuss are listed in the answers to this question.