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[173.56.234.28]) by smtp.gmail.com with ESMTPSA id u20-20020ac87514000000b0034490214788sm2396687qtq.49.2022.09.10.05.51.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Sep 2022 05:51:50 -0700 (PDT) In-Reply-To: <8335czbpe6.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 10 Sep 2022 11:32:49 +0300") X-Mailman-Approved-At: Sat, 10 Sep 2022 09:07:57 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:242099 Archived-At: monospace-p I agree is an heuristic like narrowing. In the majority of cases of long lines, it applies the algebraic shortcut when it thinks it can get away with it. What if it's wrong? Then it won't scroll up or down the full page. What if it scrolls zero on a C-n? That'd be a degenerate case, one which I'd have a hard time contriving, but that would only make it as culpable as 29.0.50 which we already know can scroll zero on C-n. But until Commercial can gather a following, my sanguinity is all pissing-contest speculation.