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==Explanation==
 
==Explanation==
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The Wikipedia article {{w|List of common misconceptions}} gives a list of {{tvtropes|CommonKnowledge|commonly-repeated claims}} that are widely believed to be true, but actually are not.  
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The Wikipedia article {{w|List of common misconceptions}} gives a list of commonly-repeated anecdotes that are widely believed to be true, but actually are not.  
  
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The teacher, [[Miss Lenhart]], is announcing that since it is the first {{w|Tuesday}} in {{w|February}}, by law and custom the reading of this article is requirement to stem the repetition of these incorrect anecdotes. (Funnily enough the comic was released the first Wednesday in January, which could just as well have been written in the comic).
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A [http://xkcd.com/843/info.0.json teacher], looking like [[Miss Lenhart]], is announcing that since it is the first Tuesday in February, by law an custom the reading of this article is requirement to stem the repetition of these incorrect anecdotes. (Funnily enough the comic was released the first Wednesday in January, which could just as well have been written in the comic).
  
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This seems to be presented as something [[Randall]] would like to actually see: one day out of each school year spent to make the population aware of things that they're likely to hear at some point, but which have been proven to be false. The stated purpose is to make people "a little less wrong."  Most of the misconceptions upon that page are trivial, and unlikely to be of real importance, but it's implied to be worth it for the sake of guests at future parties, implying that these bits of inaccurate trivia are often repeated in that environment (to subsequently annoy, confuse or misinform those listening, depending upon their own initial state of comprehension). There are however, some misconceptions that could have serious, real-world consequences, such as how long people have to wait before filing missing persons reports.
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She continues to make it clear that this is to make the students in general a little less wrong, and the main outcome will be that the guest of any future parties the students ever attend, will not have to listen to them retell these misconceptions and for that these guest will thank those who have decided on this new law in advance.
  
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Logically, given all the facts/debunking laid out on that page being officially legislated as the final word, it would remove much of the desire or ability to [[1053: Ten Thousand|raise and discuss any such issues]] in smalltalk at all, which might be considered a mixed blessing. But it would inevitably give rise to other facts, or 'facts', being raised that are not (yet) known to correctly debunk, or be subject to debunking. Perhaps that single wikipedia page will (eventually) become the sole repository of ''all'' human knowledge which can be both misunderstood and corrected... a sizable corpus! This leaves room only for fervent agreement, plus divergent opinions about the unknown and unknowable. 
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The title text refers to a specific one of these false stories:  
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In the caption below the comic [[Randall]] expresses his wishes that he lived in a {{w|Many-worlds interpretation|parallel universe}} where this rule had been used for many years. So he would not have to listen to all these stories at every party he goes to. Since Randall likes to correct people if they are wrong (see [[386: Duty Calls]]), not having to discuss with those that believe these misconceptions would make his parties much better. It may also improve the experience of all those who currently find themselves unwillingly on the receiving end of his corrections.
 
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The title text refers to a specific one of these {{w|List of common misconceptions#Chemistry and materials science|false stories about glass}}:  
 
 
:''That {{w|glass}}, while seeming solid, is actually an extremely viscous liquid and will flow over time, as is seen on older buildings where the window panes are thicker at the bottom.''  
 
:''That {{w|glass}}, while seeming solid, is actually an extremely viscous liquid and will flow over time, as is seen on older buildings where the window panes are thicker at the bottom.''  
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This myth likely arises from the fact that glass is an {{w|amorphous solid}} without a well-defined freezing point. In fact, glass becomes effectively solid once it cools down to around 1400 degrees centrigrade. At room temperature, it cannot flow at perceptible rates over human timescales. Old window panes had variable thickness due to the manufacturing process, and the thick end was generally (though not always) placed at the bottom for stability.
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In reality, older manufacturing processes did not produce glass panes with as uniform thickness as modern processes, and people tended to install the uneven panes with the thicker side at the bottom for stability. Glass simply does not flow at room temperature; it's more viscous than solid lead by a factor of over a ''billion''. The fact that glass is solid at room temperature was again referenced in a foot note, under the pipe with glass, in [[1649: Pipelines]].
  
 
==Transcript==
 
==Transcript==
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:[Miss Lenhart the teacher is standing in front of a board, looking at a laptop computer she is holding in one hand while elocuting.]
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:[A teacher, could be Miss Lenhart, is standing in front of a board, looking at a laptop computer she is holding in one hand while elocuting.]
 
:Miss Lenhart: Okay, middle school students, it's the first Tuesday in February.
 
:Miss Lenhart: Okay, middle school students, it's the first Tuesday in February.
 
:Miss Lenhart: This means that by law and custom, we must spend the morning reading through the Wikipedia article ''List of Common Misconceptions'', so you can spend the rest of your lives being a little less wrong.
 
:Miss Lenhart: This means that by law and custom, we must spend the morning reading through the Wikipedia article ''List of Common Misconceptions'', so you can spend the rest of your lives being a little less wrong.

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