I've read many references to tear out and want to understand this better. In paragraph five of this answer to a tear out question, Bowlturner says:
"Sharper gouges are more likely to cut the fibers instead of pulling them out and causing this problem. It took me a while to figure these things out."
What does a torn fiber look like compared to cut fiber?
Are there other ways to know if fiber is tearing instead of cutting?