DDOS attack or huge number of hits from US and China

UPDATE: Feb 10 2020 seems to work. The situation was between  Jan 19 – Feb 10 2020.

These are the two explanations I received about the bad behaviour of the site where I have my professional page. It started around Sunday, Jan 19 2020.(Mentioned here.)

I don’t know which is right, any of them, both or none. This however is a block of the access to this copy of the chemlambda collection, which I put online here on Saturday, Jan 11 2020.

In the case you  want to access the collection, then there are the following possibilities:

  • the original site, which sits in a place not under the control of a corp.
  • a copy of the site, with smaller pictures (I am limited by 0.5GB limit), at github, which may be blocked in your country (??)
  • you can take the original simulations which were used to make the animations from figshare. For the comments and the internal links, take them from one of the available places
  • the landing page for all chemlambda projects is on github too…
  • or maybe there is a kind soul which has access to these sites and can host the whole stuff in a non-corp. place which is accessible to everybody
  • or you find a way to notice me that you’re interested, or willing to help, and we see what we can do.

EDIT: some words about the revived collection. There are 264 posts/animations, which is a bit more than 1/2 of the original collection. Now there is the possibility to rerun in js the simulation, because whenever possible there is a mol file attached to the animation, which can be reduced in js. Some numbers now. In verifiedMol.js there are 500 mol files, but some are duplications, in order to manually enhance the automated  matching of posts with mols, so say there are about 490 mol files. If they are too big to be used without stalling the js reduction, this is signaled by the message “mol too big” in the post. If there is no mol which matches, this is signaled as “mol unavailable”. Of all 264 posts, 36 of them fall in the “mol too big” category, 46 in the “mol unavailable” and there are 6 posts which don’t have a chemlambda simulation inside. So this leaves 264-88=176 posts which have matching mol files to play with. Finally, there are two situations where the matching mol-post is not perfect: (1) when in the original simulation is used a mol file which contains nodes of a busy-beaver Turing machine (of the kind explained here), (2) when in the original is used a .mola file (a mol with actors). In both cases the js reduction does not know how to do this.

Anyway, wait for pure see, that will be a sight 🙂

All chemlambda projects landing page

I put a version of the collection of animations on github. I made a user named “chemlambda” and now there is a landing page for all chemlambda projects (bare minimum).

I’ll add more and I’ll structure more that page, but with the occasion of making available the collection, making such a site was only natural.

Please let me know if there are more (than the excellent ones I know about, like -hask, -py or -editor).



3 days since the server is too busy, so…

UPDATE: a version of the collection is on github.


the collection needs a better place. Alternatively, I could temporarily use github (by making the animations smaller, I can cram the collection into 480MB). Or better with a replacement of animations by the simulations themselves. As you see these simulations occupy 1GB, but they can be mined, in order to extract the right parameters (gravity, force strength, radii and colors, mol source) and then just reuse them in the js.

Anybody willing? I need to explain what pure see is about.

Also, use this working link to my homepage.

Google+ salvaged collection of animations (III): online again!

UPDATE: Chemlambda collection of animations. is the version of the collection hosted on github. The original site is under very heavy traffic (in Jan 2020).

UPDATE: For example the 2 neurons interacting animation can be remaked online to look like this:


First you use the mouse wheel to rescale, mouse to translate. Notice the gravity slider position. This is an animation screencasted from the real thing which takes 8 min to unfold. But in this way you see what is happening beyond the original animation.

Btw, what is such a neuron? It is simply a (vectorial) linear function, which is applied to itself,  written in lambda calculus. These two neurons are two linear functions, with some inputs and outputs connected.

Soon the links will be fixed (internal and external) [done] and soon after that there will be a more complete experience of the larger chemlambda universe. (and then the path is open for pure see)


In Oct 2018  I deleted the G+ chemlambda collection of animations, before G+ went offline. Now, a big part of it is online, at this link. For many of the animations you can do now live the reduction of the associated molecule.

The association between posts, animation and source mol file is from best fit.

There are limitations explained in the last post.

There are still internal links to repair and there has to be a way to integrate all in one experience, to pay my dues.

I put on imgur this photo with instructions, easy to share:

Screenshot from 2020-01-12 19:34:17

Use wheel mouse to zoom, mouse to move, gravity slider to expand.