Editing 2552: The Last Molecule

Jump to: navigation, search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.
Latest revision Your text
Line 7: Line 7:
 
}}
 
}}
  
== Explanation ==
+
==Explanation==
 +
{{incomplete|Created by a CONFUSED PARTIAL BIOCHEMIST - Please change this comment when editing this page. Do NOT delete this tag too soon.}}
 +
This comic jokingly proposes a situation in which chemists have discovered and catalogued every single possible molecule. Thus they declare they have "completed chemistry."
  
This comic jokingly proposes a situation in which chemists have discovered and cataloged every single possible molecule. Thus they declare they have "completed chemistry." Both parts of this are humorously incorrect.
+
In real life the number of ways to arrange atoms into molecules is growing combinatorial with the number of atoms in a molecule. Hence the number of possible combinations approaches rather quickly the number of particles in the observable universe making the full cataloging of all molecules impossible. Thus, a "final molecule" cannot be reached. In addition, chemistry is the study of the interaction and changing states of atoms and molecules, not simply the cataloging of all specimens of molecule. Even if we had a list of every molecule, there are a far greater number of ways to continue studying them, so the field would still be nowhere near completed.
  
In real life the number of ways to arrange atoms into molecules grows combinatorically with the number of atoms in a molecule. Since molecules can be extremely large (up until the point where gravity takes over and initiates nuclear fusion), the number of possible combinations is much much larger than the number of particles in the observable universe, making the full cataloguing of all molecules impossible. Thus, a "final molecule" cannot be reached.
+
This is reminiscent of biology's focus in previous centuries on simply cataloging the species on Earth.
  
Even if it were possible to catalog every molecule, though, chemistry would not be completed. This is because chemistry is not simply about cataloging molecules: rather, it's the study of how molecules, and atoms, interact with themselves and each other. The goal of any science is not to "complete" a field, but to understand it better and better.
+
Further, the goal of science is not to "complete" a field, but to understand it better and better.  No scientific field is considered fully understood. As readers are aware of this, part of the humor comes from the relative percentages given to the different fields. The title text in particular makes fun of Biology lagging behind due to the inherent difficulty of cataloging all species, when there's no way to know how many new ones remain to be found.
  
Adding to the humor is the very high percentages, and the precision, given to the other fields shown in the comic. Putting Biology at 93% and Physics at 98% is patently absurd. As mentioned in the title text, we can't even give a definitive answer to deceptively simple questions like "How many kinds of ant are there?"
+
Putting Biology at 93% and Physics at 98% is patently absurd. As mentioned in the comic, we don't even know how many kinds of ants there are yet. When J.B.S Haldane, founder of the field of population genetics, was asked what could be inferred about the creator from the creation, he reportedly said, "He has an inordinate fondness for beetles". Insects aside, fundamental and important problems such as what genes promote which traits, the nature of cognition, and the mechanism behind several diseases remain complete mysteries. We know less about our own ocean floor than we do about the surface of Mars. Needless to say, Biology is nowhere close to 93% solved. As for Physics, questions such as "what the actual hell is dark matter?" and "how do we unify the four fundamental forces?" and "how do we make nuclear fusion possible on earth?" and "how fast does light travel in one direction?" make it clear that the field still has a long, long way to go.
  
If biology ''were'' simply a matter of cataloguing species, we are currently at around 10-20%. Even this estimate is hard to nail down, partly because species are being constantly created and recategorized. Even if it were possible to know exactly what animals were alive on Earth at any one moment, and which could interbreed, there would still be no agreement on the number of species they constituted. And even if were possible to catalog every species, biology would still be faced with fundamental and important problems such as what genes promote which traits, the nature of cognition, and the mechanism behind several diseases.
+
==Transcript==
 
+
{{incomplete transcript|Do NOT delete this tag too soon.}}
As for physics, the 2012 detection of the {{w|Higgs Boson}} did complete the experimental detection of all the elementary particles of the Standard Model of particle physics. However, questions such as "what is dark matter?", "how do we unify the four fundamental forces?", "how do we make nuclear fusion possible on earth?", and "how many dimensions does the universe have?" make it clear that the field still has a long way to go.
 
 
 
The title text makes fun of Biology lagging behind due to finding more ants. There are very many species of ants and other insects: when J.B.S Haldane, founder of the field of population genetics, was asked what he learned about God from studying creation, he reportedly said [https://quoteinvestigator.com/2010/06/23/beetles/ "God is incredibly fond of beetles"].
 
  
==Transcript==
 
 
:[Ponytail is presenting on a stage. To the top-center of the slide which Ponytail is pointing to, there is a circled "100% complete" under "Chemistry", then to the left is "Biology" which is at "93% complete" and to the right is "Physics" which is at "98% complete". The bottom of the slide shows the [[wikipedia:structural formula|structural formula]] of a molecule which is captioned "The Last One", along with a few smaller captions around it drawn as squiggles.]
 
:[Ponytail is presenting on a stage. To the top-center of the slide which Ponytail is pointing to, there is a circled "100% complete" under "Chemistry", then to the left is "Biology" which is at "93% complete" and to the right is "Physics" which is at "98% complete". The bottom of the slide shows the [[wikipedia:structural formula|structural formula]] of a molecule which is captioned "The Last One", along with a few smaller captions around it drawn as squiggles.]
  
Line 34: Line 32:
 
[[Category:Chemistry]]
 
[[Category:Chemistry]]
 
[[Category:Physics]]
 
[[Category:Physics]]
[[Category:Ants]]
 

Please note that all contributions to explain xkcd may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see explain xkcd:Copyrights for details). Do not submit copyrighted work without permission!

To protect the wiki against automated edit spam, we kindly ask you to solve the following CAPTCHA:

Cancel | Editing help (opens in new window)