It is also a matter of how we perceive the relationship between man and nature – whether we regard the natural world as the aesthetic norm, something pristine upon which humanity and our technological "advances" intrude.
Rarely do other factors intrude and aggravate the situation.
Even on the rare occasions when the real world does intrude it means almost nothing: witness the jump-cut footage of the Arab spring U2 incorporated into a rendition of their hit, Sunday Bloody Sunday – as usual, dissent and revolt remodelled as blank spectacle.
Earlier, Stan Wawrinka had to come from a set and a break down to overcome Juan Mónaco 4-6, 6-2, 6-2 and it could be that his personal life continues to intrude on his tennis.
If the state is prepared to abuse its powers and instruments so widely and gravely in cases such as this, where there is a high risk of detection, and if it is prepared to intrude so far into people's lives that its officers live with activists and father their children, what is it not prepared to do while spying undetectably on our private correspondence?
"Few people would expect a TV to intrude on our privacy, yet this is increasingly becoming the case.
I mean no disrespect to him and his fellow politicians in Northern Ireland – this is simply an observation of how things are – when I say that they rarely intrude into the consciousness of the rest of the United Kingdom.
Nor does Knausgaard intrude on the truth of the past with the hindsight of the present, even when it comes to the question of musical taste – a subject that is notorious for historical revisionism.
But in February the court heard arguments on the core of the case: whether a federal judge has the right to intrude in the decision of a government agency.
Big-breasted, narrow-waisted and long-legged, she has helped sex intrude into childhood.
Millennials are already eschewing credit cards altogether.Some payments groups are now starting to intrude on banks' traditional preserve of lending.
