The Professional Technician is always learning, grinding, and study her/his craft to stay at the top of their game. It does require more of you, as a human, like any other professional role does. You do not wear this as an arrogance badge, no – A professional wears this as an opportunity to elevate the entire crew. Why do the work required to be a Master Craftsperson? My industry, your industry, the HVAC industry, has some brilliant people in it.