Sunday, November 15, 2009

Limitations of dreams


My scientific training is as an experimentalist surface scientist in a materials science related study. I spent a significant amount of time in the lab. It is one of my secondary homes. One bone of contention in the scientific world is the clash between experimentalist (us) versus theorist (what is a lab?). Both disciplines take large amounts training, rigorous work and deep thought. In an ideal world, theory should follow after experimental data. Occasionally, theory should predict a result like nuclear weapons is a great example. This post is going to cover a potential dark side associated with theory.

Theory is based upon experimental data sets and observations. Most experimental data fits into trends following mathematical relations. New data usually has previous bodies of work to support the new theoretical idea or concept. Over time, a story is built within a given area of study. It becomes easier to predict experimental outcomes ahead of time. New chapters in the story are written as evidence is presented with a theorist entering the wording.

One very basic concept that is the basis of all theory are assumptions. The theory holds true if for example in a chemistry experiment, the temperature, pressure and etc. are at certain levels. Note, these are serious limitations.
All related conditions have to be met for the theory to be true. One assumption is not met, the theoretical framework fails. During initial theory development, many pieces are missing and often all assumptions are not yet known. This will often lead to semi-independent theories. In science and engineering fields, this learning process is benign. Trouble comes with other less easily quantifiable subjects such as sociology, psychology and history for several reasons. First, many subtle factors come into play. Second, not all of the necessary pieces are known. Finally, if a theory is not correct and taken by public policy makers as gospel, significant damage to society may occur. One of the worst historical outcomes from a theory comes from the false science (accepted in the past) known as Eugenics. Eugenics is the idea of keeping a genetic stock pure without undesired genes like genetic diseases. Sterilization of those with less than desirable traits was the main cure. Sometimes death was the their cure. Eugenics was one of the main driving forces behind the Nazi concentration camps.

Groupthink is when a group of individuals comes to a consensus without any serious debate leading to the suppression of all opposing ideas. This is not a fault of theory itself, but of those who are authorities on a given subject. It promotes continuation of false ideals and is a greater threat to any organization than an incomplete theory. Development of a theoretical framework requires legitimate questioning of an idea or concept. If the theory can not comprehensively address a proper inquiry, the theory has serious problems. The problem can often be fixed with a slight refinement. Other times, the theory is then disproven and a new concept is proposed. Groupthink suppresses all questioning, thus, faulty theories are allowed to live and often thrive. Some faulty theories cause serious damage if applied without any moderation to public venues touching us all.

No comments:

Post a Comment