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	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2865:_The_Wrong_Stuff&amp;diff=330591</id>
		<title>Talk:2865: The Wrong Stuff</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2865:_The_Wrong_Stuff&amp;diff=330591"/>
				<updated>2023-12-11T12:08:47Z</updated>
		
		<summary type="html">&lt;p&gt;Chlang: /* What kind of bricks? */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
the design is very timeghost-esque [[Special:Contributions/172.71.167.165|172.71.167.165]] 21:42, 8 December 2023 (UTC)Bumpf&lt;br /&gt;
&lt;br /&gt;
== personal similarity ==&lt;br /&gt;
&lt;br /&gt;
NOTE: people are misleadingly adding comments below this lengthy topic. Looks like the interface is defaulting to that.&lt;br /&gt;
&lt;br /&gt;
I made a post to the derelict cypherpunks list right before this about ghost visits. It’s notable because I used to post to the same derelict list about making a spaceship out of tissue paper, specifically pursuing the wrong materials in response to a ghostlike experience preventing me from effective work (which i now understand as a dissociative disorder).&lt;br /&gt;
&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-December/120247.html Thu Dec 7 20:57:06 PST 2023]&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;2249&lt;br /&gt;
&lt;br /&gt;
a ghost visits you&lt;br /&gt;
&lt;br /&gt;
you: “oh! a ghost! are you a spirit of a person who is now dead?”&lt;br /&gt;
&lt;br /&gt;
the ghost looks sheepish&lt;br /&gt;
&lt;br /&gt;
ghost: “i am a psychological result of something you went through!”&lt;br /&gt;
&lt;br /&gt;
the ghost grins, trying to put on a great-looking appearance&lt;br /&gt;
&lt;br /&gt;
you: “awww frack”&lt;br /&gt;
&lt;br /&gt;
the ghost stops grinning and looks crestfallen and depressed&lt;br /&gt;
&lt;br /&gt;
ghost: “i want to repeat something that perturbed you from the thing you went through, over and over … would this be okay with you?” [translator may have taken liberties with this line]&lt;br /&gt;
&lt;br /&gt;
you: “oh no that would um be really perterburing! um !!”&lt;br /&gt;
&lt;br /&gt;
ghost [looking sheepish again]: “um !”&lt;br /&gt;
&lt;br /&gt;
you and the ghost both put handkerchiefs over your mouths to represent politeness or something and you go for a walk down a lane in your town called “memory la—&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-January/110003.html Mon Jan 30 18:35:20 PST 2023]&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[crazy][spam]&lt;br /&gt;
&lt;br /&gt;
let’s reduce the tension and go back to a concept spammed to this list before&lt;br /&gt;
&lt;br /&gt;
let’s make a space rocket out of tissue paper! or s9mething similarly incredibly flimsy like cobwebs or dustballs.&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-January/110004.html Mon Jan 30 18:36:19 PST 2023]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[crazy][spam]&lt;br /&gt;
&lt;br /&gt;
- we can use an nlp bot to scrape the internet for materials&lt;br /&gt;
properties and perform the rough design&lt;br /&gt;
&lt;br /&gt;
- we can make bots that replicate like a reprap generator to collect&lt;br /&gt;
the materials&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-September/117502.html Sun Sep 3 18:03:06 PDT 2023]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;Model Spaceship Made Of Snow&lt;br /&gt;
&lt;br /&gt;
I'm guessing we can make it out of ice when it is really cold. We&lt;br /&gt;
could press or melt the snow to make it into ice, and cast, cut, or&lt;br /&gt;
assemble and fuse parts into a spaceship shape.&lt;br /&gt;
&lt;br /&gt;
Rocket fuel could melt the ship when it burns, maybe need a way to&lt;br /&gt;
cool it significantly, but with a model maybe it could hold compressed&lt;br /&gt;
air somehow? it does seem hard&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-September/117517.html Sun Sep 3 18:23:54 PDT 2023]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;how to make spaceship out of ice?&lt;br /&gt;
&lt;br /&gt;
so, ice is likely to melt when traveling at escape velocity, maybe&lt;br /&gt;
imagining a huge buffer around the ship: like, design it to melt its&lt;br /&gt;
exterior. big wide giant spaceship near ground, little tiny spaceship&lt;br /&gt;
at edge of atmosphere&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2022-March/097050.html Tue Mar 8 17:35:33 PST 2022]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;The Questioning Spam&lt;br /&gt;
&lt;br /&gt;
A worker was building a rocket ship out of grass.&lt;br /&gt;
&lt;br /&gt;
Questioner: &amp;quot;Why don't you use, I dunno, like, steel and ceramic&lt;br /&gt;
plates, to make your rocket ship, rather than grass?&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Worker: &amp;quot;It's just a hobby project.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Questioner: &amp;quot;Why don't you make it a serious proiject?&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Worker: &amp;quot;I really have more time than money, honestly.&amp;quot;&lt;br /&gt;
…&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2022-January/094637.html Fri Jan 7 03:23:38 PST 2022]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[ot][spam][crazy] holding community goals&lt;br /&gt;
&lt;br /&gt;
stone soup is kind of a puzzle, no?  like building a spaceship out of&lt;br /&gt;
wet noodles&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2021-December/093963.html Wed Dec 22 09:47:30 PST 2021]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;Making a Spaceship out of Wet Noodles in C&lt;br /&gt;
&lt;br /&gt;
It's hard to make a C program that builds a spaceship out of wet noodles.&lt;br /&gt;
&lt;br /&gt;
But, at the end of the day, it's down to your free time,&lt;br /&gt;
experience+ingenuity, and the libraries you have available to call&lt;br /&gt;
into.&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2021-December/093000.html Wed Dec 1 00:17:51 PST 2021]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[spam][ot][rambling][crazy] Building a Spaceship Out Of Something Ridiculously Weak and Flimsy&lt;br /&gt;
&lt;br /&gt;
I like to daydream around hard challenges.&lt;br /&gt;
&lt;br /&gt;
I don't know how to build a spaceship.  But maybe it would be fun to try.&lt;br /&gt;
&lt;br /&gt;
To make it harder, let's make it out of only something ridiculously hard to&lt;br /&gt;
do it with, like toilet paper, or leaves, or old newspapers.&lt;br /&gt;
&lt;br /&gt;
I don't know what kinds of problems one runs into when building a&lt;br /&gt;
spaceship, but when I start planning it I think the first problem will be&lt;br /&gt;
getting something to go really, really far against gravity.&lt;br /&gt;
&lt;br /&gt;
Another problem I hear about is burning up as you accelerate through the&lt;br /&gt;
atmosphere.&lt;br /&gt;
&lt;br /&gt;
I imagine aiming what direction you go in is pretty hard too.&lt;br /&gt;
&lt;br /&gt;
I'm thinking I'm probably okay with there being some guidance computers and&lt;br /&gt;
robotics on the craft, but that we would _mostly_ make it out of tissue&lt;br /&gt;
paper or whatnot.  Making computers out of tissue paper can be considered a&lt;br /&gt;
separate problem, for now.&lt;br /&gt;
&lt;br /&gt;
One way to make tissue paper move is to burn it.  Could we use a&lt;br /&gt;
tissue-paper-fueled rocket to accelerate the craft?  Almost certainly not,&lt;br /&gt;
but doing the calculations for this could inform what thing to consider&lt;br /&gt;
next.&lt;br /&gt;
&lt;br /&gt;
I have no idea how to make a rocket, or how rockets work, but I imagine&lt;br /&gt;
that when you burn something, it turns into gas, and the expansion of the&lt;br /&gt;
gas is much larger than the thing you burned, so if you direct this gas in&lt;br /&gt;
some direction or another, it might push something further. I dunno.  Like&lt;br /&gt;
getting up from a chair because of a fire you sat in.  Maybe?  I dunno.&lt;br /&gt;
&lt;br /&gt;
Maybe I'll briefly websearch for &amp;quot;solid fuel rocket&amp;quot; and see what I get.&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt; … the post goes on and I then replied with more things for a few days. Rereading it turns out I was playing with my psychological triggers from social influence AI, and it’s hard to continue cause my amnesia and dissociation is kicking in (might try a different part not sure). I think of this xkcd as about me though!&lt;br /&gt;
&lt;br /&gt;
[[Special:Contributions/172.71.254.32|172.71.254.32]] 21:48, 8 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
It's probably worth a mention that the title is most likely a reference to &amp;quot;The Right Stuff&amp;quot; (film). [[Special:Contributions/172.69.247.65|172.69.247.65]] 22:57, 8 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
The title is probably a reference to &amp;quot;The Right Stuff&amp;quot; (TV Series) instead, since the title's unusual capitalization aligns with the series's title's font style but not the film's title font. [[Special:Contributions/172.71.146.43|172.71.146.43]] 00:04, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
:I don't understand why the Trojan Horse is considered an example of building something out of the wrong stuff. Within the legendary context of the Trojan War, the Trojan Horse succeeded at exactly what it was built to do, namely, transport the Greek warriors into Troy so they could sack the city. An actual horse made out of skin and muscle and bones would not have been able to fit the Greek warriors inside.{{cn}} That's like saying that Lunar Module Eagle from Apollo 11 was built of the wrong material because it didn't have feathers. --[[Special:Contributions/172.70.127.57|172.70.127.57]] 06:34, 9 December 2023 (UTC)&lt;br /&gt;
:: Humour comes in threes, perhaps Randall was struggling to come up with a third example (while saving the Brick Moon for the mouse over text)? :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 07:04, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
What has happened to this wiki? It used to be when there were glitches and flubs, there would be evidence, screenshots, records for us to see, particularly for those of us who didn't see it before it was fixed. Now there's a passing mention in Trivia and for all we know someone could be mistaken or lying. Uhhh, we'd like to SEE this! I mean, when the anomaly is &amp;quot;It was posted super early/late&amp;quot;, okay, not much to capture there, really, but a screenshot of the mis-capitalized title would have been easy! Every time the comic is uploaded 2x, a bot gives &amp;quot;here it is normal sized, which isn't special at all and you can see anyway because Randall fixed it by now&amp;quot;. What happened to the recordkeeping here? (BTW, the text title here still says &amp;quot;the&amp;quot;, not &amp;quot;The&amp;quot;) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]])&lt;br /&gt;
: The mailing list email was sent out with the incorrect capitalization,  which should provide some evidence. Unfortunately the RSS and Atom feeds have been corrected, so I'm not sure how someone could provide proof, since screenshots can be manipulated. Could someone publish the email headers to show that an email with that subject was sent by the mailing.xkcd.com servers? [[Special:Contributions/172.70.46.251|172.70.46.251]] 12:47, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
The discrete would have worked. :-) What isn't mentioned was the successful (for a given definition of) we the reinforced concrete ships in WW2. Mostly mine sweepers. They could be repaired at sea! Possibly a precursor of GRP? Oh, BTW steel was thought to be a wrong material! [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 08:14, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
== What kind of bricks? ==&lt;br /&gt;
&lt;br /&gt;
When I first read this comic, I was sure it meant LEGO bricks... --[[Special:Contributions/162.158.129.17|162.158.129.17]] 11:33, 9 December 2023 (UTC)&lt;br /&gt;
:...which would naturally lead to the obvious reply: &amp;quot;That's no moon!&amp;quot; [[User:Ralfoide|Ralfoide]] ([[User talk:Ralfoide|talk]]) 18:48, 9 December 2023 (UTC)&lt;br /&gt;
:Within the Long Earth series (Pratchett/Baxter, and I'm not quite sure whose imagination/knowledge was initially used in this case as they both have(/had) a lot of the necessary for this kind of thing) there's a &amp;quot;Brick Moon&amp;quot; in 'The Gap' (a place where there's not an Earth at all, in the place where one should be) that's built almost 'simply', given then ability to avoid the need to 'launch' hardware into space like you would to access space above the Earth(s) as we do here. The structural requirements and materials available (basically, anything so long as it wasn't iron) made bricks (or similarly trivial materials) the ideal bulk material to be 'stepped' over from adjacent Earths into the Earthlike 'solar orbit' where things would happily sit. And, by proxy, become a staging point to easily launch off the 'missing' Earth from which other steppings could also be made. With a few caveats, of course. [[Special:Contributions/162.158.74.118|162.158.74.118]] 20:05, 9 December 2023 (UTC)&lt;br /&gt;
:Look up SHIPtember![[User:Chlang|Chlang]] ([[User talk:Chlang|talk]]) 12:08, 11 December 2023 (UTC)&lt;/div&gt;</summary>
		<author><name>Chlang</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=Talk:2865:_The_Wrong_Stuff&amp;diff=330590</id>
		<title>Talk:2865: The Wrong Stuff</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=Talk:2865:_The_Wrong_Stuff&amp;diff=330590"/>
				<updated>2023-12-11T12:08:03Z</updated>
		
		<summary type="html">&lt;p&gt;Chlang: /* What kind of bricks? */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&amp;lt;!--Please sign your posts with ~~~~ and don't delete this text. New comments should be added at the bottom.--&amp;gt;&lt;br /&gt;
&lt;br /&gt;
the design is very timeghost-esque [[Special:Contributions/172.71.167.165|172.71.167.165]] 21:42, 8 December 2023 (UTC)Bumpf&lt;br /&gt;
&lt;br /&gt;
== personal similarity ==&lt;br /&gt;
&lt;br /&gt;
NOTE: people are misleadingly adding comments below this lengthy topic. Looks like the interface is defaulting to that.&lt;br /&gt;
&lt;br /&gt;
I made a post to the derelict cypherpunks list right before this about ghost visits. It’s notable because I used to post to the same derelict list about making a spaceship out of tissue paper, specifically pursuing the wrong materials in response to a ghostlike experience preventing me from effective work (which i now understand as a dissociative disorder).&lt;br /&gt;
&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-December/120247.html Thu Dec 7 20:57:06 PST 2023]&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;2249&lt;br /&gt;
&lt;br /&gt;
a ghost visits you&lt;br /&gt;
&lt;br /&gt;
you: “oh! a ghost! are you a spirit of a person who is now dead?”&lt;br /&gt;
&lt;br /&gt;
the ghost looks sheepish&lt;br /&gt;
&lt;br /&gt;
ghost: “i am a psychological result of something you went through!”&lt;br /&gt;
&lt;br /&gt;
the ghost grins, trying to put on a great-looking appearance&lt;br /&gt;
&lt;br /&gt;
you: “awww frack”&lt;br /&gt;
&lt;br /&gt;
the ghost stops grinning and looks crestfallen and depressed&lt;br /&gt;
&lt;br /&gt;
ghost: “i want to repeat something that perturbed you from the thing you went through, over and over … would this be okay with you?” [translator may have taken liberties with this line]&lt;br /&gt;
&lt;br /&gt;
you: “oh no that would um be really perterburing! um !!”&lt;br /&gt;
&lt;br /&gt;
ghost [looking sheepish again]: “um !”&lt;br /&gt;
&lt;br /&gt;
you and the ghost both put handkerchiefs over your mouths to represent politeness or something and you go for a walk down a lane in your town called “memory la—&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-January/110003.html Mon Jan 30 18:35:20 PST 2023]&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[crazy][spam]&lt;br /&gt;
&lt;br /&gt;
let’s reduce the tension and go back to a concept spammed to this list before&lt;br /&gt;
&lt;br /&gt;
let’s make a space rocket out of tissue paper! or s9mething similarly incredibly flimsy like cobwebs or dustballs.&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-January/110004.html Mon Jan 30 18:36:19 PST 2023]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[crazy][spam]&lt;br /&gt;
&lt;br /&gt;
- we can use an nlp bot to scrape the internet for materials&lt;br /&gt;
properties and perform the rough design&lt;br /&gt;
&lt;br /&gt;
- we can make bots that replicate like a reprap generator to collect&lt;br /&gt;
the materials&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-September/117502.html Sun Sep 3 18:03:06 PDT 2023]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;Model Spaceship Made Of Snow&lt;br /&gt;
&lt;br /&gt;
I'm guessing we can make it out of ice when it is really cold. We&lt;br /&gt;
could press or melt the snow to make it into ice, and cast, cut, or&lt;br /&gt;
assemble and fuse parts into a spaceship shape.&lt;br /&gt;
&lt;br /&gt;
Rocket fuel could melt the ship when it burns, maybe need a way to&lt;br /&gt;
cool it significantly, but with a model maybe it could hold compressed&lt;br /&gt;
air somehow? it does seem hard&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2023-September/117517.html Sun Sep 3 18:23:54 PDT 2023]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;how to make spaceship out of ice?&lt;br /&gt;
&lt;br /&gt;
so, ice is likely to melt when traveling at escape velocity, maybe&lt;br /&gt;
imagining a huge buffer around the ship: like, design it to melt its&lt;br /&gt;
exterior. big wide giant spaceship near ground, little tiny spaceship&lt;br /&gt;
at edge of atmosphere&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2022-March/097050.html Tue Mar 8 17:35:33 PST 2022]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;The Questioning Spam&lt;br /&gt;
&lt;br /&gt;
A worker was building a rocket ship out of grass.&lt;br /&gt;
&lt;br /&gt;
Questioner: &amp;quot;Why don't you use, I dunno, like, steel and ceramic&lt;br /&gt;
plates, to make your rocket ship, rather than grass?&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Worker: &amp;quot;It's just a hobby project.&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Questioner: &amp;quot;Why don't you make it a serious proiject?&amp;quot;&lt;br /&gt;
&lt;br /&gt;
Worker: &amp;quot;I really have more time than money, honestly.&amp;quot;&lt;br /&gt;
…&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2022-January/094637.html Fri Jan 7 03:23:38 PST 2022]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[ot][spam][crazy] holding community goals&lt;br /&gt;
&lt;br /&gt;
stone soup is kind of a puzzle, no?  like building a spaceship out of&lt;br /&gt;
wet noodles&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2021-December/093963.html Wed Dec 22 09:47:30 PST 2021]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;Making a Spaceship out of Wet Noodles in C&lt;br /&gt;
&lt;br /&gt;
It's hard to make a C program that builds a spaceship out of wet noodles.&lt;br /&gt;
&lt;br /&gt;
But, at the end of the day, it's down to your free time,&lt;br /&gt;
experience+ingenuity, and the libraries you have available to call&lt;br /&gt;
into.&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt;&lt;br /&gt;
[https://lists.cpunks.org/pipermail/cypherpunks/2021-December/093000.html Wed Dec 1 00:17:51 PST 2021]&lt;br /&gt;
&amp;lt;blockquote&amp;gt;&amp;lt;code&amp;gt;[spam][ot][rambling][crazy] Building a Spaceship Out Of Something Ridiculously Weak and Flimsy&lt;br /&gt;
&lt;br /&gt;
I like to daydream around hard challenges.&lt;br /&gt;
&lt;br /&gt;
I don't know how to build a spaceship.  But maybe it would be fun to try.&lt;br /&gt;
&lt;br /&gt;
To make it harder, let's make it out of only something ridiculously hard to&lt;br /&gt;
do it with, like toilet paper, or leaves, or old newspapers.&lt;br /&gt;
&lt;br /&gt;
I don't know what kinds of problems one runs into when building a&lt;br /&gt;
spaceship, but when I start planning it I think the first problem will be&lt;br /&gt;
getting something to go really, really far against gravity.&lt;br /&gt;
&lt;br /&gt;
Another problem I hear about is burning up as you accelerate through the&lt;br /&gt;
atmosphere.&lt;br /&gt;
&lt;br /&gt;
I imagine aiming what direction you go in is pretty hard too.&lt;br /&gt;
&lt;br /&gt;
I'm thinking I'm probably okay with there being some guidance computers and&lt;br /&gt;
robotics on the craft, but that we would _mostly_ make it out of tissue&lt;br /&gt;
paper or whatnot.  Making computers out of tissue paper can be considered a&lt;br /&gt;
separate problem, for now.&lt;br /&gt;
&lt;br /&gt;
One way to make tissue paper move is to burn it.  Could we use a&lt;br /&gt;
tissue-paper-fueled rocket to accelerate the craft?  Almost certainly not,&lt;br /&gt;
but doing the calculations for this could inform what thing to consider&lt;br /&gt;
next.&lt;br /&gt;
&lt;br /&gt;
I have no idea how to make a rocket, or how rockets work, but I imagine&lt;br /&gt;
that when you burn something, it turns into gas, and the expansion of the&lt;br /&gt;
gas is much larger than the thing you burned, so if you direct this gas in&lt;br /&gt;
some direction or another, it might push something further. I dunno.  Like&lt;br /&gt;
getting up from a chair because of a fire you sat in.  Maybe?  I dunno.&lt;br /&gt;
&lt;br /&gt;
Maybe I'll briefly websearch for &amp;quot;solid fuel rocket&amp;quot; and see what I get.&lt;br /&gt;
&amp;lt;/code&amp;gt;&amp;lt;/blockquote&amp;gt; … the post goes on and I then replied with more things for a few days. Rereading it turns out I was playing with my psychological triggers from social influence AI, and it’s hard to continue cause my amnesia and dissociation is kicking in (might try a different part not sure). I think of this xkcd as about me though!&lt;br /&gt;
&lt;br /&gt;
[[Special:Contributions/172.71.254.32|172.71.254.32]] 21:48, 8 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
It's probably worth a mention that the title is most likely a reference to &amp;quot;The Right Stuff&amp;quot; (film). [[Special:Contributions/172.69.247.65|172.69.247.65]] 22:57, 8 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
The title is probably a reference to &amp;quot;The Right Stuff&amp;quot; (TV Series) instead, since the title's unusual capitalization aligns with the series's title's font style but not the film's title font. [[Special:Contributions/172.71.146.43|172.71.146.43]] 00:04, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
:I don't understand why the Trojan Horse is considered an example of building something out of the wrong stuff. Within the legendary context of the Trojan War, the Trojan Horse succeeded at exactly what it was built to do, namely, transport the Greek warriors into Troy so they could sack the city. An actual horse made out of skin and muscle and bones would not have been able to fit the Greek warriors inside.{{cn}} That's like saying that Lunar Module Eagle from Apollo 11 was built of the wrong material because it didn't have feathers. --[[Special:Contributions/172.70.127.57|172.70.127.57]] 06:34, 9 December 2023 (UTC)&lt;br /&gt;
:: Humour comes in threes, perhaps Randall was struggling to come up with a third example (while saving the Brick Moon for the mouse over text)? :) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]]) 07:04, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
What has happened to this wiki? It used to be when there were glitches and flubs, there would be evidence, screenshots, records for us to see, particularly for those of us who didn't see it before it was fixed. Now there's a passing mention in Trivia and for all we know someone could be mistaken or lying. Uhhh, we'd like to SEE this! I mean, when the anomaly is &amp;quot;It was posted super early/late&amp;quot;, okay, not much to capture there, really, but a screenshot of the mis-capitalized title would have been easy! Every time the comic is uploaded 2x, a bot gives &amp;quot;here it is normal sized, which isn't special at all and you can see anyway because Randall fixed it by now&amp;quot;. What happened to the recordkeeping here? (BTW, the text title here still says &amp;quot;the&amp;quot;, not &amp;quot;The&amp;quot;) [[User:NiceGuy1|NiceGuy1]] ([[User talk:NiceGuy1|talk]])&lt;br /&gt;
: The mailing list email was sent out with the incorrect capitalization,  which should provide some evidence. Unfortunately the RSS and Atom feeds have been corrected, so I'm not sure how someone could provide proof, since screenshots can be manipulated. Could someone publish the email headers to show that an email with that subject was sent by the mailing.xkcd.com servers? [[Special:Contributions/172.70.46.251|172.70.46.251]] 12:47, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
The discrete would have worked. :-) What isn't mentioned was the successful (for a given definition of) we the reinforced concrete ships in WW2. Mostly mine sweepers. They could be repaired at sea! Possibly a precursor of GRP? Oh, BTW steel was thought to be a wrong material! [[User:RIIW - Ponder it|RIIW - Ponder it]] ([[User talk:RIIW - Ponder it|talk]]) 08:14, 9 December 2023 (UTC)&lt;br /&gt;
&lt;br /&gt;
== What kind of bricks? ==&lt;br /&gt;
&lt;br /&gt;
When I first read this comic, I was sure it meant LEGO bricks... --[[Special:Contributions/162.158.129.17|162.158.129.17]] 11:33, 9 December 2023 (UTC)&lt;br /&gt;
:...which would naturally lead to the obvious reply: &amp;quot;That's no moon!&amp;quot; [[User:Ralfoide|Ralfoide]] ([[User talk:Ralfoide|talk]]) 18:48, 9 December 2023 (UTC)&lt;br /&gt;
:Within the Long Earth series (Pratchett/Baxter, and I'm not quite sure whose imagination/knowledge was initially used in this case as they both have(/had) a lot of the necessary for this kind of thing) there's a &amp;quot;Brick Moon&amp;quot; in 'The Gap' (a place where there's not an Earth at all, in the place where one should be) that's built almost 'simply', given then ability to avoid the need to 'launch' hardware into space like you would to access space above the Earth(s) as we do here. The structural requirements and materials available (basically, anything so long as it wasn't iron) made bricks (or similarly trivial materials) the ideal bulk material to be 'stepped' over from adjacent Earths into the Earthlike 'solar orbit' where things would happily sit. And, by proxy, become a staging point to easily launch off the 'missing' Earth from which other steppings could also be made. With a few caveats, of course. [[Special:Contributions/162.158.74.118|162.158.74.118]] 20:05, 9 December 2023 (UTC)&lt;br /&gt;
Look up SHIPtember![[User:Chlang|Chlang]] ([[User talk:Chlang|talk]]) 12:08, 11 December 2023 (UTC)&lt;/div&gt;</summary>
		<author><name>Chlang</name></author>	</entry>

	<entry>
		<id>https://www.explainxkcd.com/wiki/index.php?title=2865:_The_Wrong_Stuff&amp;diff=330588</id>
		<title>2865: The Wrong Stuff</title>
		<link rel="alternate" type="text/html" href="https://www.explainxkcd.com/wiki/index.php?title=2865:_The_Wrong_Stuff&amp;diff=330588"/>
				<updated>2023-12-11T12:06:39Z</updated>
		
		<summary type="html">&lt;p&gt;Chlang: /* Trivia */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;{{comic&lt;br /&gt;
| number    = 2865&lt;br /&gt;
| date      = December 8, 2023&lt;br /&gt;
| title     = The Wrong Stuff&lt;br /&gt;
| image     = the_wrong_stuff_2x.png&lt;br /&gt;
| imagesize = 351x513px&lt;br /&gt;
| noexpand  = true&lt;br /&gt;
| titletext = The phantom found Edward Everett Hale a century too early; by the time we invented satellites, the specifics of his 'brick moon' proposal were dismissed as science fiction.&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Explanation==&lt;br /&gt;
{{incomplete|Created by a TRAIN MADE OF 1977 SOVIET URANIUM - Please change this comment when editing this page. Do NOT delete this tag too soon.}}&lt;br /&gt;
Multiple times in history, there have been incidents where companies, governments, and engineers have proposed or developed plans for large vehicles composed of unconventional materials. One example is {{w|Project Habakkuk}} (mentioned in the comic), an aircraft carrier which was to be composed of pykrete, a mixture of wood pulp and ice. The comic imagines that all of these proposals are linked together by a single &amp;quot;Material Phantom,&amp;quot; a ghost which haunts engineers and convinces them to design giant vehicles made of impractical materials.&lt;br /&gt;
&lt;br /&gt;
The three &amp;quot;wrong material vehicles&amp;quot; mentioned in the comic are:&lt;br /&gt;
&lt;br /&gt;
*{{w|The Spruce Goose}} - An actual {{w|flying boat}} made almost entirely out of wood (specifically {{w|birch}} wood, despite the word &amp;quot;{{w|spruce}}&amp;quot; in its name). Most modern planes are constructed out of aluminum, some other metal/alloy or (partially) out of carbon / glass fibre composites (CFRC / GFRC). Notably, despite being built out of the &amp;quot;wrong&amp;quot; material (due to wartime restrictions on aluminum usage, the use of birch wood was the next best option) the plane did make a single 26-second flight in 1947 before production halted due to the end of the war. The plane is currently on display at the {{w|Evergreen Aviation &amp;amp; Space Museum}} in {{w|McMinnville, Oregon}}, {{w|United States}}. More notably, other wooden aircraft of that era, such as the {{w|De_Havilland_Mosquito|De Havilland Mosquito}}, were wildly successful, strongly indicating that the Goose's problem was not that it was made of wood. Many early planes made use of wood in their construction, and the skills and knowledge to build an airframe of that kind were still readily available in that era, in a way that they might not be today.&lt;br /&gt;
*{{w|Project Habakkuk}} - A proposed aircraft carrier whose hull was to be made out of pykrete (a mixture of wood pulp and ice). It would have had several advantages had it been built when it was supposed to be (1943): it would have been able to guard the vital wartime North Atlantic supply routes between the USA and United Kingdom, as it would have been a base for fighter and reconnaissance missions; it would have been able to be easily camouflaged as an innocuous iceberg, and it was both stronger than steel (which the Mythbusters proved in a 2008 episode) and did not require voids between the structural elements in order to be buoyant (so could absorb a lot of damage and cannot spring leaks). The reason it was never fully built was because incredibly high requirements were placed on the project far exceeding the original concept, causing expense and engineering challenges to mount until it wasn't much cheaper than traditional steel-alloy hulls, from which ships continue to be built today, given that large quantities of metal were pulled in to prevent the ship from warping under its own mass via extra cooling and structure (although the abandoned prototype itself lasted for several years before it finally melted). There were also now airfields available to use in various Atlantic islands that could close the air-gap in coverage without having to (effectively) build their own floating island from scratch.&lt;br /&gt;
*{{w|Trojan Horse}} - A mythological, giant wooden horse, supposedly used by {{w|Ancient Greece|the Greeks}} to invade the city of {{w|Troy}}. Actual horses are composed, like any other animal, out of meat, bone, and other tissues and bodily fluids.{{citation needed}} In addition, the interior of the Trojan Horse was composed of Greek warriors rather than horse innards.&lt;br /&gt;
&lt;br /&gt;
The title text references 19th-century author {{w|Edward Everett Hale|Edward Everett Hale}} and his science fiction novella ''{{w|The Brick Moon}},'' the earliest known depiction of an artificial satellite and a scientifically-accurate GPS system in fiction. The novella is, of course, just a sci-fi story,{{cn}} but the title text states that Hale was actually approached by the Material Phantom, and the novella was a serious proposal for a moon made out of bricks.&lt;br /&gt;
&lt;br /&gt;
The title &amp;quot;the Wrong Stuff&amp;quot; is a play on {{w|The Right Stuff}}, a book/movie/TV series about the pilots engaged in U.S. postwar research with experimental rocket-powered, high-speed aircraft and the astronauts of {{w|Project Mercury}}. In that title, &amp;quot;the right stuff&amp;quot; refers to the figurative material that these men were made of which gave them the bravery to embark on these missions.&lt;br /&gt;
&lt;br /&gt;
==Trivia==&lt;br /&gt;
This comic was uploaded with the &amp;quot;the&amp;quot; in &amp;quot;the Wrong Stuff&amp;quot; being entirely lowercase, breaking the normal title case used for XKCD comic titles. Possibly another word was initially intended to come before &amp;quot;the&amp;quot;, in which case lowercasing &amp;quot;the&amp;quot; would be correct. xkcd displays lowercase letters in titles with {{w|small caps}}, making the lowercase &amp;quot;the&amp;quot; less obvious than it is in the true lowercase used on explainxkcd.&lt;br /&gt;
&lt;br /&gt;
However, it's worth noting that the comic title has since been changed to &amp;quot;The Wrong Stuff,&amp;quot; with &amp;quot;the&amp;quot; capitalized as per standard title case.&lt;br /&gt;
&lt;br /&gt;
Every September, Adult Fans of Lego who like spaceships have a month long build event called SHIPtember (SHIP stands for Seriously Huge Investment in Parts) where spaceships are actually built out of bricks:  Lego bricks!&lt;br /&gt;
&lt;br /&gt;
==Transcript==&lt;br /&gt;
{{incomplete transcript|Do NOT delete this tag too soon.}}&lt;br /&gt;
:[A ghost is approaching Cueball in a workshop. They are surrounded by shop equipment, such as a table with a press on it, and a small pile of what appears to be lumber. Cueball is backing away from the ghost, holding his hands up defensively.]&lt;br /&gt;
:Ghost: oooOOOOOOoooo&lt;br /&gt;
:[The &amp;quot;ooooo&amp;quot;s of the ghost are written in wavy letters of varying sizes]&lt;br /&gt;
:Ghost: ''Build a spaceship out of bricks!''&lt;br /&gt;
:Ghost: oooooOOOOOOOOoo&lt;br /&gt;
:Cueball: No! Go away!&lt;br /&gt;
&lt;br /&gt;
:[Caption below the panel:]&lt;br /&gt;
:The Spruce Goose, the Project Habakkuk Ice Ship, and the Trojan Horse  were all work of the Material Phantom, a ghost that wanders the Earth convincing engineers to make giant vehicles out of the wrong stuff.&lt;br /&gt;
&lt;br /&gt;
{{comic discussion}}&lt;br /&gt;
&lt;br /&gt;
[[Category:Comics featuring Cueball]]&lt;br /&gt;
[[Category:Engineering]]&lt;/div&gt;</summary>
		<author><name>Chlang</name></author>	</entry>

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