In discourse following the UK referendum on 23 June 2016 significant attention has been paid
to the question What does Brexit mean? The answer seems to be straightforward: it means UK exit from the EU, which requires UK withdrawal from the EU Treaty.
A much more important and challenging question is What next? Central to evaluation of the
options available is another question, a question about the meaning of words: What does the
expression free movement of persons mean? Put more specifically: What conditions need to
be satisfied in order to be able to say that free movement of persons has been established?