Over billions of years of trial and error, nature has devised effective solutions to all sorts of complicated real-world problems.

ECONOMIST: REPORTS

Some take approaches which can best be described as akin to a human immune system, applying different remedies to an error and logging what is effective for future use, alerting the owner for intervention only when all other options have been exhausted.

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Neurologist Antonio Damasio, a professor at the University of Iowa College of Medicine, suggests in his book Descartes' Error that emotion is critical to effective thinking and decision making.

FORBES: On The Cover/Top Stories

Reformations can, retroactively, change documents, but they may not always be effective in undoing tax consequences that occurred as result of the error.

FORBES: "Fixing" the Broken Estate Plan

For me, the best way to discover the most effective rituals to help me achieve my most important priorities was though trial and error.

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