Arnold Schwarznegger popularized bodybuilding, became a successful movie star and is now governor of the most populated state in the United States. I think the

Arnold Schwarznegger popularized bodybuilding, became a successful movie star and is now governor of the most populated state in the United States. I think the point should be experience in a field is extremely valuable given all the time that had to be invested. It really should stop there. The second conclusion - that you ought not to jump fields because of the experience advantage that you would be losing - is false.