Psychology is a young science trying to work in a
very hard area, and influential founders such as Jung and Freud did a wonderful job of getting it off on the wrong foot. However, more modern psychology has come a long way; in particular with Evolutionary Psychology such as that popularised by Stephen Pinker.
Improvements in neuroscience and the development of sounder experimental techniques will also help push it forward. My big hope is that it will drop some of it's pseudo-medical trappings and develop more useful diagnostic tools (most mental 'illnesses' aren't).
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