Expert information. It in no way assures that the author of that site or blog is an expert. Some characteristics of the development of an expert have been found to include Mark Twain defined an expert as "an ordinary fellow from another town". Will Rogers described an expert as "A man fifty miles from home with a briefcase." Danish scientist and Nobel laureate Niels Bohr defined an expert as "A person that has made every possible mistake within his or her field." Malcolm Gladwell describes expertise as a matter of practicing the correct way for a total of around 10,000 hours.
Collapse: How Societies Choose to Fail or Succeed of the think-tank Institute of Public Affairs wrote a critical review in "Energy & Environment", in particular its chapter on Australia's environmental degradation. Marohasy claims that Diamond reflects a popular view that is reinforced by environmental campaigning in Australia, but is not supported by evidence, and argues that many of his claims are easily disproved. In his review in "The New Yorker", Malcolm Gladwell highlights the way Diamond's approach differs from traditional historians by focusing on environmental issues rather than cultural questions. While Diamond does not reject the approach of traditional historians, his book, according to Gladwell, vividly illustrates the