I'm glad to hear that you're interested in the field, and I think it's wise to "look before you leap." IMHO, I believe that the next several decades will be a time of great change within the field. Our understanding of the etiology and treatment of various psychiatric problems will evolve considerably, just as they have over the past fifty years. Future psychiatrists will need to be flexible and willing to consider alternative explanations and theories. I'm sure that there will be a very strong attempt to delineate specific diagnoses using procedures such as genetic analysis or brain imaging (and if we are fortunate, some may be discovered). However, I believe we will continue to find that people are not reducible to chemicals, genes, cells, electricity and environmental experiences. There will be a great need for compassionate psychiatrists who can listen well, who will provide a balance of therapy and medication management, and who will recognize the limitations that science and medicine face when dealing with individual human beings.