There is no substitute for experience in the company of mentors/more knowledgeable colleagues. For this reason the very experienced, sure-footed mules who carry people down into and back up out of the Grand Canyon of the Colorado should not be consulted about the Canyon's geology.
To vary the metaphor, books having titles like 'Topology made easy' or 'Neurosurgery for dummies' achieve their objectives, when they do, by leaving the hard parts out. John Gilmore, Ashland, MA 01721 - USA
