If all of us are born with an essentially similar brain, with more or less the same configuration and potential for mastery, why is it then that in history only a limited number of people seem to truly excel and realize this potential power?
You end up choosing a career that does not really suit you. Your desire and interest slowly wane and your work suffers for it. You come to see pleasure and fulfillment as something that comes from outside your work. Because you are increasingly less engaged in your career, you fail to pay attention to changes going on in the field–you fall behind the times and pay a price for this.