daniel added a comment. @Thryduulf Thanks for the input. I See where you are coming from. The trouble is: in order to apply conversion and meaningful comparison, we //have// to assume some level of uncertainty. Assuming +/-0 leads to strange results for display, and mismatches in queries.
It seems like an agreement is forming that we should have an explicit notion for "no uncertainty given", and not display an "assumed" uncertainty in such cases. But we still have to assume some uncertainty in order to perform meaningful calculations without introducing spurious digits. Assuming +/-0 would be wrong; when you say 27km, you do not mean 27km, 0meters, 0millimeters, 0micrometers, and 0 nanometers, as +/-0 would indicate. You probably mean "27km, give or take a few hundred meters" -- which is what 27km +/-0.5 means: it basically says "to the nearest kilometer". So while there is definitely room for improvement and discussion about when and how to "guess" uncertainty, I see no way to get around it entirely. TASK DETAIL https://phabricator.wikimedia.org/T105623 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: daniel Cc: Thryduulf, Mike_Peel, Jc3s5h, thiemowmde, kaldari, daniel, Stryn, Lydia_Pintscher, Liuxinyu970226, Snipre, Event, Ash_Crow, mgrabovsky, Micru, Denny, He7d3r, Bene, Wikidata-bugs, Ricordisamoa, Kelson, MSGJ, Klortho, Wolfvoll, Aklapper, aude _______________________________________________ Wikidata-bugs mailing list Wikidata-bugs@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata-bugs