2015-04-20
XKCD Isn't Funny - #1514 - PermaCal
Okay, so he made a calender system with one, singular date that never changes. Why then, does he change it when someone points out that it never changes? If you'll go back and reread the comic, she doesn't even say "The date changed", she only says that he said it was the 19th yesterday.
This is a calender system, this is how it has worked and will continue to work for him, the date is constant. "You said it was the 19th yesterday" shouldn't result in him changing the date. If someone who used this calender actually heard that statement, they'd say something more like "Yep, I did. Because it was, and is, Sunday, April 19th, 3AM eternal.". If a calender's sole principle is that there is one constant date, then that date would never change.
What is this "drift", anyway? Is this calender also predicated on assuming that the Gregorian Calender gives the 'correct' date? I mean, it does (it was named after me, after all, and I am always correct all the time forever), but other calenders don't do that. You don't see the Jews going around saying "Yeah, the Sabbath's delayed this week because it's the Islamic New Year".
(apologies to anyone offended by my 'ten minutes on Wikipedia' knowledge of alternative calenders)
Leap days aren't even used that way. Leap days and leap seconds are used because our timetables are slightly out of sync in various ways with the rotation/orbit of the earth, and they bring us back in sync.
Btw, is anyone else hyped for the leap second coming June 30th? I was thinking of sleeping in since I was going to get the extra time, but I think I'm going to throw a party or something instead. It'll be like New Year's (real New Year's, not your heathen alternative calender New Year's) but special because it's not something that happens every single year.
Labels:
execution issues,
greg,
nitpicking,
xkcd,
xkcd isn't funny
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