Just how much can be achieved in the two year timeframe under Article 50?

Legal experts give their assessment of what is likely to happen next on the road to Brexit

Protesters outside Stormont after Article 50 was triggered Pic: Getty

“This is an historic moment from which there can be no turning back,” Theresa May told the British Parliament after Article 50 was triggered this afternoon.

Turning back time on a moment, whether historic or not, is always problematic but otherwise the message couldn't be clearer. Britain is leaving the EU and now that the process is in motion, it is irrevocable.

There are dissenters to this notion of irreversibility; Jolyon Maugham for one, ...