It isn't what we don't know that gives us trouble, it's what we know that ain't so. - Will Rogers The - Gerald M. Weinberg

One typical computing example of social fixation is the adoption of one programming language by an installation. Once the language has been adopted, a new language has more difficulty making an entry, because with most of the people using the old language, advantages accrue to following the beaten path.

Since nobody's perfect, we need resistance to test our ideas.

"One of my clients told me the story of the optimist and the pessimist who were arguing about philosophy. The optimist declares,"This is the best of all possible worlds." The pessimist sighs and says, "You're right.