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===Creationist criticism===

===Creationist criticism===

Dr. [[Walt Brown]] wrote the following about the concept of dark energy:

Dr. [[Walt Brown]] wrote the following about the concept of dark energy:

{{cquote|Neither “dark matter” (created to hold the [[universe]] together) nor “dark energy” (created to push the universe apart) has been seen or measured.  We are told that “most of the universe is composed of invisible dark matter and dark energy.” Few realize that both mystical concepts were devised to preserve the [[big Bang theory|big bang theory]].<ref>http://www.creationscience.com/onlinebook/AstroPhysicalSciences16.html</ref>}}

{{cquote|Neither “dark matter” (created to hold the [[universe]] together) nor “dark energy” (created to push the universe apart) has been seen or measured.  We are told that “most of the universe is composed of invisible dark matter and dark energy.” Few realize that both mystical concepts were devised to preserve the [[big Bang theory|big bang theory]].<ref>Brown, Walt, "http://www.creationscience.com/onlinebook/AstroPhysicalSciences16.html Big Bang]?", ''In the Beginning: Compelling Evidence for Creation and the Flood'', 8th ed., 2008</ref>}}

Dark energy is a mathematical convenience. Some authorities admit that it may never be detectable. One reason why no one would ever detect it is that it represents an error. [[Evolution]]istic cosmologists have admitted that dark energy might represent an error of their understanding of gravity. Creationists suggest that the error is far more fundamental.

Dark energy is a mathematical convenience. Some authorities admit that it may never be detectable. One reason why no one would ever detect it is that it represents an error. [[Evolution]]istic cosmologists have admitted that dark energy might represent an error of their understanding of gravity. Creationists suggest that the error is far more fundamental.