Proponents of this holographic principle believe that all of the complexities of reality contain far less information than common sense would suggest.

FORBES: Flatland?

What I'm in principle in favour of is people simply recognising geographical reality.

BBC: Transcript of Nick Clegg interview

"It's one of those rough and ready decisions where you try to marry political reality with principle", he said.

BBC: Information law scrutiny means worries on both sides

One hard reality is the emergence of transcontinental alliances of liberals and conservatives, undermining the ancient Christian principle that in each geographical area only one bishop should have authority.

ECONOMIST: When you're a church, breaking up is hard to do