Whoop, we have proposed 'exit' day and time. 23:00hrs 29th March 2019.
Though the BBC, bless em, couldnt help rolling out Lord Kerr in the same piece. (The mildly amusing Lord and author of A50, who spits bile at ignorant common people and famously said "We native Brits are so bloody stupid that we need an injection of intelligent people, young people from outside ")
But this point is worth persuing, as its cheery on 2 fronts.
Lord Kerr has clearly 'forgotten' that at the Supreme Court, Gina Miller and Co on one side, and the Government on the other, both sides argued A50 could not be withdrawn. Miller and Co used Lord Kerr to enforce this position. The Supreme Court made their judgment based on that. Heres the judgement.
https://www.supremecourt.uk/cases/docs/uksc-2016-0196-judgment.pdf
Para 26 reads;
"In these proceedings, it is common ground that notice under article 50(2) (which we shall call “Notice”) cannot be given in qualified or conditional terms and that, once given, it cannot be withdrawn. "
An Act of Parliament was then passed as demanded.
Lord Kerr I have two things to say to you. I know youre 75, but Im concerned about your faculties. I can only assume this is forgetfulness, as the alternative, an effort to undermine and derail procedures with presenting false information to the general public (or the Supreme Court, take your pick) is surely beneath a Lord of the Realm? And 2, the Beeb are looking at means testing you re your licence. I hope this doesnt cause you hardship.
Cheery cheers to Gina Miller 
http://www.bbc.co.uk/news/uk-politics-41936428