[philwelch]

So, option 2 (May's deal) is off the table. It's not gonna happen. That was today's vote. Maybe if they stall for another couple months and vote on it again in February or early March it might force the issue, but I doubt it.

Option 4 (second referendum) isn't necessarily on the table, because the UK cannot hold a referendum in the time they have left until the Article 50 deadline in March. They would have to ask the EU for an extension, and there's no guarantee that they'll get one.

Option 3 (pass an Act of Parliament to revoke the Article 50 invocation) is possible, but just like May's deal, I don't think the current Parliament has the votes, and there isn't time for a general election before the deadline. It's also a relatively permanent option--the legal opinion seems to be that a country can revoke Article 50, but they can't just keep invoking and revoking Article 50 over and over again in bad faith, which would seem to preclude any sort of "let's revoke Article 50 and we can just re-invoke it later once we realize what we actually want out of this".

Option 1--No Deal Brexit--is just what is going to automatically happen absent some sort of uncertain intervention. You can't get a second referendum or even a new deal done in time for the Article 50 deadline, you can't revoke Article 50 unless you're actually committing to remaining in the EU, and the existing deal is dead in the water. And, in a certain sense, Option 1 is really just a manifestation of the idea that, in a democracy, the people get the government they deserve.

[renaudg]

That's not quite correct. The EU has stated they would consider granting an extension "for the right reasons" (meaning of course, a second referendum).

It's definitely possible to stop the clock.

[gpderetta]

They can invoke and revoke at will. The other side can just refuse to do any further negotiations because of bad faith, leaving staying in or hard exit as the only options.