It would appear that no UK politician, including those who headed the Leave campaign, is in any rush to press the red button of the Article 50 notification. The now departing Prime Minister David Cameron says it is up to a successor. One likely successor, Boris Johnson, says there is no haste. The red button will be positioned behind a locked door in Downing Street with a protective case placed on top. It is not going to get pressed by accident, if it is ever going to get used.
And what will happen without the button being pressed may be a political phoney war. It may well be that nothing happens at all: that the referendum result just hangs there, and things carry on an institutional and supranational basis much as before.
And there are events which could make it plausible that the notification button is never pressed. A second referendum so the UK can vote the right way may take place, after some new deal. Or the European Union may itself fall apart, as other Member States jostle for position, or even manoeuvre for their own or others departure.
The referendum result was of immense political importance, but there was no framework for the Leave result to have any direct knock-on effects. So there is now a period of waiting, where the various actors involved face off and try ever so hard not to blink.