Boris will cave in over Brexit in the next few weeks. Then try to sell it as his own Original plan.
He is not going to risk Career Terminating Consequences of no deal . It's all a game to him.
i read the other day, though it was via someone else mobile phone, that he will quit in the spring anyway, if so, you can then have someone else to rail at?
The only career terminating consequence would be a cave in.
He needs to ensure that whatever is agreed doesn't cross the UK red lines. It bears reiterating, no-deal is better than a bad deal.