To aid the under­stand­ing and con­struc­tion of qual­ity argu­ments, Paul Gra­ham has cre­ated a “dis­agree­ment hier­ar­chy”: a study on how (and how not) to dis­agree.

We can use this clas­si­fi­ca­tion sys­tem to ensure that when we respond to a person’s rea­son­ing, we respond to it in a way that is con­struc­tive for the con­ver­sa­tion (by avoid­ing responses low in the hierarchy—DH0, DH1, etc.).

  • DH0 Name-calling.
  • DH1 Ad Hominem.
  • DH2 Respond­ing to Tone.
  • DH3 Contradiction.
  • DH4 Counterargument.
  • DH5 Refutation.
  • DH6 Refut­ing the Cen­tral Point.

It’s a sim­pli­fi­ca­tion of a com­plex area, use­ful as a ref­er­ence. Gra­ham sug­gests the fol­low­ing ben­e­fit, among others:

The most obvi­ous advan­tage of clas­si­fy­ing the forms of dis­agree­ment is that it will help peo­ple to eval­u­ate what they read. In par­tic­u­lar, it will help them to see through intel­lec­tu­ally dis­hon­est arguments.

via @zambonini