It takes about 7 years on average to achieve proficiency in a given domain. Usually 3-5 years of study and 2-4 years of real world experience. If you really wan

It takes about 7 years on average to achieve proficiency in a given domain. Usually 3-5 years of study and 2-4 years of real world experience. If you really want to you can have 5 or 6 different careers in life. Are you 35 and want to become a doctor? An architect? An engineer? An actor? Go back to school and you’ll get there by 42. The problem is that most people either have financial commitments or too much pride to go back to the start again.