Daniel Pink in Wired 11.05 claims that the Bell Curve (normal distribution) goes more and more flat : low in the center and high on the side. For instance : there is tremendously large companies (GM, Citigroup...) and small enterprises; high-end luxury hotel and low-end budget (same for airways companies). He also finds this considering american schoolkids' education : the percentage of students scoring the top level increases as well as the percentage of students scoring at the bottom level. In-between, the portion decreases... Life according to him becomes more and more BIMODAL.

I have to think about it...