The Next Level

I've found that to go from one level to another you often have to destroy some knowledge in order to gain other knowledge. - Yo-Yo Ma

Something I need to do much more frequently is question what I believe to be the facts about tuba playing.  Any breakthrough I've ever had has involved replacing what I know with better, newer, and more efficient knowledge.  To most efficiently make room for new knowledge I must question what I already believe to be true.