A good deal of the basic psychology seems reasonable and can be seen in every day life – however its difficult to avoid the conclusion that some of the extensions are nearer to a crude marketing attempt to create a spurious expertise and differentiation based on pseudo science..

In a recent blog post Seth Godin makes the important point that “expanding the market” and “grabbing an increased share of the market” are different, and have different costs. Expanding the market Seth says is much more expensive…than grabbing market share.

However this would seem to be based on the potential fallacy that once someone has [...]