From Paul Graham: How To Disagree
“If we’re all going to be disagreeing more, we should be careful to
do it well. What does it mean to disagree well? Most readers can
tell the difference between mere name-calling and a carefully
reasoned refutation, but I think it would help to put names on the
intermediate stages. So here’s an attempt at a disagreement
DH1. Ad Hominem.
DH2. Responding to Tone.
DH6. Refuting the Central Point.