Re: Marked down by history
The referendum also says nothing about timescale.
Even assuming that parliament does nothing else (except perhaps pass the occasional budget) it would take at least 5 years to disentangle all the EU legislation - perhaps closer to 10 if we expect the government to have some vestige of a domestic legislative programme as well. It hardly seems advisable for us to press the Article 50 button before we've got the legislation in place and some idea of the shape of the likely EU deal. Given that the EU won't talk to us (allegedly) until we invoke Article 50 and we won't invoke it until it's in our best interests, we could still be debating this in a generation's time.
Several prime ministers may have come and gone by that time and been entirely forgotten by history.