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Study finds 268% higher failure rates for Agile software projects
(www.theregister.com)
This is a most excellent place for technology news and articles.
Fail fast is the whole point and the beauty of agile. Better to meet with clients early and understand if a project is even workable rather than dedicating a bunch of resources to it up front and then finding out six months in (once the sunk cost fallacy has become too powerful)