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| Logic is in short supply and off-by-one errors are everywhere. Most people don't care. I think it's more doable to learn to just live with that than to reprogram mankind. |
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| 95% of the world uses Celcius without problems because they're used to it. You'd either also be fine with it or you belong to a sub-5th percentile which couldn't figure it out, take your pick. |
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| I agree. For ambient temp, F is twice as accurate in the same number of digits. It also reflects human experience better; 100F is damn hot, and 0F is damn cold.
Celsius is for chemists. |
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| "You can change the world if you make it easier to meet a need enough people have"
True and should not be forgotten in this debate. But clear communication is a need many people have. |
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| Think of it as the 700s, which is a weird way to refer to the 1700s, unless you are taking a cue from the common usage. That’s just how the periods are referenced by Italian art historians. |
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| The century in which the switch occurred (which was different in different countries) was shorter than the others. As were the decade, year, and month in which the switch occurred. |
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| > What does that even mean?
It means just what it says. In the common calendar, the year after 1 BC (or BCE in the new notation) was 1 AD (or CE in the new notation). There was no "January 1, 0000". |
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| > whether that date actually existed or not is irrelevant.
No, it isn't, since you explicitly said to start the first century on the date that doesn't exist. What does that even mean? |
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| 0 CE = 1 BCE
10 C = 50 F = 283.15 K 1 = 0.999… Things can have more than one name. The existence of the year 0 CE is not in question. What’s in question is whether that’s a good name for it or not. |
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| The first day of the 1st Century is Jan 1, 1 AD.
The point is that some days got skipped over the centuries, but there's no need to make the Centuries have weird boundaries. |
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| > The first day of the 1st Century is Jan 1, 1 AD.
That's not what the poster I originally responded to is saying. He's saying the 1st Century should start on a nonexistent day. |
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| And also, the system is a direct descendant of regnal numbering, where zero wouldn’t have made sense even if invented (there is no zeroth year of Joe Biden’s term of office). |
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| So shouldn't this be the "0-episode"? ;-)
(0, because only after the first question, we have actually 1 episode performed. Consequently, the 1-episode is then the second one.) |
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| There are numerous common concise ways to write the 18th century, at the risk of needing the right context to be understood, including “C18th”, “18c.”, or even “XVIII” by itself. |
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| What about languages that don’t have an equivalent to “the Xs” for decades or centuries?
Also, 1799 is obviosly more than 1700, as well as 1701 > 1700 – why should the naming convention tie itself to the lesser point? After one’s third birthday, the person is starting their fourth year and is not living in their third year. I feel this is relevant https://xkcd.com/927/ |
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| It's easy, we should have simply started counting centuries from zero. Centuries should be zero-indexed, then everything works.
We do the same with people's ages. For the entire initial year of your life you were zero years old. Likewise, from years 0-99, zero centuries had passed so we should call it the zeroth century! At least this is how I justify to my students that zero-indexing makes sense. Everyone's fought the x-century vs x-hundreds before so they welcome relief. Izzard had the right idea: https://youtu.be/uVMGPMu596Y?si=1aKZ2xRavJgOmgE8&t=643 |
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| yes, birthday and birth day are different things. Just like everyday and every day have different meanings, and it isn't confusing (to most people). |
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| > who would even say that?
Writers. And yes, cardinal versus ordinal is my point. The farther from the origin, the less people are likely to want them different. |
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| > nobody says "21st year" either
On the contrary, enough people say it, it's a quora question: https://www.quora.com/What-does-it-mean-to-be-in-your-twenty... Authors love phrases like this. Which, in turn, comes from another ordinal/cardinal confusion stemming back to common law: "A person who has completed the eighteenth year of age has reached majority; below this age, a person is a minor." That means they completed being 17, but that's just too confusing, so people think you stop being a minor in your 18th year. |
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| If you point at year long intervals, then those will be year long intervals indeed.
Nevertheless the traditional "how old are you" system uses a number 1 less. |
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| I say give it 11 years or so for 2020's kids to starting come into age, and twenties babies will refer to babies born in the 2020's and not centenarians. |
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| Immigrating from a country that uses "1700s", it probably took a decade before I had internalized to subtract 1 to get the real number.
I will resent it till I die. |
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| > This leaves ambiguous how to refer to decades like 1800-1809.
There is the apostrophe convention for decades. You can refer to the decade of 1800–1809 as "the '00s" when the century is clear from the context. (The Chicago Manual of Style allows it: https://english.stackexchange.com/a/299512.) If you wanted to upset people, you could try adding the century back: "the 18'00s". :-) There is also the convention of replacing parts of a date with "X" characters or an em dash ("—") or an ellipses ("...") in fiction, like "in the year 180X". It is less neat but unambiguous about the range when it's one "X" for a digit. (https://tvtropes.org/pmwiki/pmwiki.php/Main/YearX has an interesting collection of examples. A few give you the century, decade, and year and omit the millennium.) Edit: It turns out the Library of Congress has adopted a date format based on ISO 8601 with "X" characters for unspecified digits: https://www.loc.gov/standards/datetime/. |
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| I was referring to 1701 to 1800 inclusive, which is not the standard way people refer to centuries and is not what other people will mean or will think you mean, in general. |
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| As a kid I came across a book titled “Scientists of the 20th century”, and I was intrigued how the authors knew about future scientists. |
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| The American and French Revolutions are a pretty big deal on the road to modern democracy, as well as being tied to 1700s Enlightenment ideals. Everyone educated should know this. |
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| A pretty big deal in America. I don't think knowledge of the exact date of the American Revolution is a requirement for education outside America. At least no more than "17something...ish". |
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| "17something...ish" is enough to answer (or at least make a high confidence guess at) the original question (was the American Revolution contemporary with the enlightenment?) |
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| You could say that about anything.
I limited my initial statement to educated folks, and presumably those who would like to be one. /history/democracy/milestones -> relatively important. |
https://www.youtube.com/watch?v=KDTxS9_CwZA
The "Final Jeopardy" question simply asked on what date did the 20th century begin, and all three contestants got it wrong, leading to a 3-way tie.