This article starts from Chris & Thirza's general summary of Theories of Deep Disagreement, critically reflects on the concept of Deep Disagreement and the concept of Disagreement, re-examines the causes of Deep Disagreement in a different way from Chris & Thirza, and explores the possible advantages of Deep Disagreement some features. This kind of questioning starts from my original concept of The Same Problem, and then discusses the Popular Opinion about Disagreement. Finally, return to Wittgenstein's Private Language Problem and Other Minds Problem, so as to lead to my original concept of Private Viewing Difference and redefine the concept of Deep Disagreement.

Feng Zhang. Reflections on Theories of Deep Disagreement: The Same Problem and Private Viewing Difference. Academic Journal of Humanities & Social Sciences (2023) Vol. 6, Issue 15: 113-118. https://doi.org/10.25236/AJHSS.2023.061518.

[1] Wittgenstein L, Anscombe G E M, von Wright G H, et al. On certainty. Oxford: Blackwell, 1969.

[2] Ranalli C, Lagewaard T. Deep Disagreement (Part 1): Theories of Deep Disagreement. Philosophy Compass, 2022, 17(12): e12886.

[3] Fogelin R. The logic of deep disagreements. Informal logic, 2005, 25(1).

[4] Pritchard D. Disagreements, of beliefs and otherwise//Voicing dissent. Routledge, 2018: 22-39.

[5] Matheson J. Deep disagreements and rational resolution. Topoi, 2021, 40(5): 1025-1037.

[6] Wittgenstein L. Philosophical investigations. John Wiley & Sons, 2010.

[7] Ranalli C. What is deep disagreement?. Topoi, 2021, 40(5): 983-998.

[8] Smith P S, Lynch M P. Varieties of deep epistemic disagreement. Topoi, 2021, 40(5): 971-982.

[9] Heidegger M. Identity and difference. University of Chicago Press, 2002.

[10] Wittgenstein L. Tractatus logico-philosophicus. Edusp, 1994.

[11] Pritchard D. Wittgensteinian hinge epistemology and deep disagreement. Topoi, 2021, 40(5): 1117-1125.

[12] Piedrahita O A. Can hinge epistemology close the door on epistemic relativism?. Synthese, 2021, 199(1-2): 4645-4671.

[13] Kripke S A. Wittgenstein on rules and private language: An elementary exposition. Harvard University Press, 1982.

[14] Trächtler J. ‘Hinges’ of Trust–Wittgenstein on the Other Minds Problem. Anthem Studies in Wittgenstein, 2022.

[15] Hazlett A. Higher-order epistemic attitudes and intellectual humility. Episteme, 2012, 9(3): 205-223.

[16] Pritchard D. Intellectual humility and the epistemology of disagreement. Synthese, 2021, 198(Suppl 7): 1711-1723.