The post, dated Oct 2, appears at John Baez Azimuth blog. Here is what I see today Oct 4th:
[ UPDATE: Recently, I deleted the chemlambda collection. The content of it will become public again in a new form. Meanwhile mail me for access. However, the github repo, libraries, demos and articles are public.]
The chemlambda molecule which is used is available at the chemlambda library of molecules, as tape_long_4653_2.mol . You can download the simulation itself (which was used to make the animation) from the Chemlambda collection of simulations at Figshare, the file tape_long_4653_2.js.
The last time when one of my animations was used withot attribution, the situations was quickly solved. I explained then that the chemlambda project is an Open Science project and that correct attribution is what is fair to do.
Now, I would expect from an academic researcher more.
Anyway, again the magic of chemlambda strikes. Let me tell you what the animation is really about. Metabolism and replication are two fundamental ingredients of life. Which came first? Are these independent? I prepared the molecule and experimented with it to show that (in the artificial toy chemistry chemlambda) metabolism and replication may be related, in the sense that metabolism may appear as failed replication.
The molecule in question is a “tape”, topologically the same as a DNA loop. On the tape there is a very small part which triggers the duplication of the tape molecule. The duplication works perfectly, there are several examples in the chemlambda collection. But this time I took a tape which duplicates without problems and I modified it in a single place. The result is a failed duplication which is spectacular in the sense that the tape molecule produces a number of disconnected graphs (i.e. other molecules), some of them are quines.