"Psychiatrist R. D. Laing, among others, has said that the growing incidence of mental illness these days may be explained in part by the fact that the world we call real and which we ask people to live within and understand is itself open to question. The environment we live in is no longer connected to the mix of planetary processes which brought us all into being. It is solely the product of human mental processes. It is real, but only in the way that a theatrical play or a fun house is real. Our artificial environment is there and we can experience it, yet it has been created on purpose by other humans. It is an interpretation of reality; it no longer reveals how nature works and it cannot provide much useful information to human beings who seek to see their own lives as part of some wider natural process. We are left with no frame of reference untouched by human interpretation."