Given the question: Facts: - period: 1970 -- present - caption: sinclair in 2011 and alan moore at the cheltenham science festival - notableworks: '' downriver '' - birth date: 11 june 1943 - nationality: british - image: iain sinclair cheltenham.jpg - birth place: cardiff , wales Based on these bullet points, write a short biography describing the life of iain sinclair .
The answer is:
iain sinclair frsl -lrb- born 11 june 1943 -rrb- is a british writer and filmmaker .much of his work is rooted in london , most recently within the influences of psychogeography .