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nobody will fund a technology like Libra, owned by Facebook, in fact they already failed before

the main point is that Bitcoin is decentralized, there are many nodes in China, Iran, etc. that is why it has so much value


the main feature it is not de-regulation but de-centralization, anyone could run a Bitcoin node and unless you own 51% of the network you cannot control it

Facebook is trying to create yet another world bank


MathJax is more complete than KaTeX and it is supported on GitHub Pages, see also https://g14n.info/2014/09/math-on-github-pages/


It's also a lot heavier and slower. Unless you need extra features that katex doesn't support it's best to use the latter.


It’s not “supported on GitHub Pages” in any specific way. Both engines can work client-side by scanning your HTML for LaTeX code enclosed in $$…$$ or \(…\) or other configurable delimiters. You can just drop the appropriate JS/CSS into your default layout, and you don’t need any special support from Jekyll for this to work. Kramdown can be configured with a math backend, and the only thing it will do in MathJax mode is replace $$…$ with \(…\) and \[…\] depending on the environment, and not parse escapes and Markdown syntax in that snippet. The KaTeX mode of kramdown does stuff server-side, which might not be desirable on GitHub Pages — but this is fixable by just telling Kramdown you’re using MathJax, and including KaTeX with auto-render in your templates.


I created and use this tiny helper: http://g14n.info/aws-lambda-res/

I think it is far enough for my needs, it is nice to use no framework other than the one provided by AWS.


I am developing a generic data flow programming tool, it is only view and the model or engine can be added on top of it.

If you want to use it I am more then happy to help: https://github.com/fibo/flow-view


Do you have a working online example? The links don't seem to work (404 or blank), and I'd like to see whether I should try it if I at some time get to write a dataflow graph config tool sitting on top of timely-dataflow. Especially because I expect to use it for a sizable event processing graph.


Thank you for the feedback, I restored the online example here: http://g14n.info/flow-view/examples/basic/

I am also working on an engine that is able to run javascript code: https://github.com/fibo/dflow

Currently I am working on a rewrite and I will use flow-view to create custom nodes, for example nodes that have a canvas or a graph inside (images a SinOsc node with a graphic preview). The engine is able to order nodes by level and run them usinng the graph order, it is not an event based engine but every graph compiles a JS function.


ahah nice trick, I added it to my .vimrc ... and why not? also this

inoremap uu <esc>


Actually idempotent comes from algebra, in particular from ring theory. An ideal is idempotent if its generator, say it a, multiplied by itself n times, equals the ring identity.

See also https://en.wikipedia.org/wiki/Idempotent_(ring_theory)

The definition of idempotent used in IT, assumes that n=2.

Another concept stolen from Mathematics and misused in IT is Topology.


> Actually idempotent comes from algebra, in particular from ring theory. An ideal is idempotent if its generator, say it a, multiplied by itself n times, equals the ring identity.

The Wikipedia article you linked to defined it for ring elements rather than for ideals of rings and for n=2. I agree that it is sometimes useful to define it more generally where it is in respect to some integer n, analogous to nilpotence.

You may have encountered this notion first in ring theory which may have led to this impression, but it is by no means an idea originating from this specific context.

For example, another comment points out that in linear algebra, a projection operator is said to have the idempotence property.


As far as I know, gitbash uses a dumb terminal. You will have issues with features like readline, UTF8 chars and so on. Putty is a standard Terminal emulator.


I also wrote an article with my Putty settings: http://g14n.info/2014/06/my-putty-settings/


The main issue I found with flow is importing type packages.


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