The possibility of a technological solution to the Brexit Northern Ireland border issue could be more than a decade away, according to a UK Home Office document seen by Sky News.
The document implies that a technological solution - which would aim to keep the Irish border entirely open and without physical checkpoints - is a distant and very expensive prospect.
The authors state that the technology would likely not be ready to be deployed in the UK until 2030.
A technological solution to the Irish border quagmire has been much trumpeted by Brexiteers for months, if not years.
It has been at the centre of Theresa May's efforts to find an alternative to the Irish backstop, which would involve a basic customs union for the whole of the UK with the EU and Northern Ireland moving closer to EU regulations on goods.