Perhaps human nature has a fundamental ambivalence and bi-polarity at its core.
Hence we talk about seeing a glass half full and then half empty
In order to have functioning markets we need differences of opinion about values and outlooks about the future etc. This may mean that markets are inherently unstable as some economists (not the mainstream majority) have proposed. The real challenge is to clarify and then redress the asymmetry of the risk/reward payoff which underlies a private gain/public pain system.
Discussion in Spain on Leaving the Euro; Euro Exit Manifest
27 minutes ago