R Experts right.
However knowledgeable they may B,experts in any field may have conflicting and shifting opinions.
take for exampl the ongoing debate in medical science on something as basic as causes of illnesses.`The relative important of nature versus nurture in illness forms the fabric of heated debate among scientists'writes a professor of medience at Harvard university.Those in....determinist camp believe...genes play a......role in our suspectilibity to various diseases.
Other contend that....envirement,lifestyle R the major factors in human pathology....statistics............
etc are bandied around.
None the less the debate contuines