Or the third scenario - posture on and on about 'no deal', to the extent that Parliament steps in and stops it all. Boris then says 'it's either no deal or revoke article 50', and goes for a second referendum on that. Revoke article 50 wins, and Brexit doesn't happen. Which is, after all...
Well, his letter to the EU hasn't gone down with resounding success has it? And not surprised really, as all he has said is 'alternative arrangements instead', which is what Theresa May was sent off to the EU by Parliament to discuss, only to come back with nothing. Boris will undoubtedly say...