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The proof of 2+2=4 down to the axioms of mathematics: ![1050433711416721408-DpPjb2OXUAAYRuU](https://user-images.githubusercontent.com/11392207/150610853-a6bb4cf5-dcb4-48bd-a7a2-9b9998b973e0.jpg) (the final node is in the top right corner) http://us.metamath.org/mpeuni/2p2e4.html http://us.metamath.org/mpeuni/mmset.html#trivia Another visualization as concentric rings, with the proof...

## Historical background Welcome to the 1970s. Personal computers don't exist. Computers look like this: ![image](https://user-images.githubusercontent.com/11392207/71781019-1b87b800-2fca-11ea-939d-d999b992403a.png) ![image](https://user-images.githubusercontent.com/11392207/71780792-62c07980-2fc7-11ea-8466-cf535411a209.png) This one in particular, the [SDS 940 (pdf)](http://archive.computerhistory.org/resources/access/text/2010/06/102687219-05-08-acc.pdf) costs 400,000 1970s-Dollars, that's 2.6...

The fundamental KeyKOS idea is this: A process does not *own* resources, it consists *exclusively* of rights *to* resources. One of such right types is the Node Key, which points...

Some cool stuff I came across: There exist quite a few camera networks all around the world which capture vast areas of the night sky, like the Australian [Desert Fireball...

The [Hutter Prize](https://en.wikipedia.org/wiki/Hutter_Prize) awards prize money for improving the lossless data compression ratio of natural language text. Participants can submit a compressor and decompressor, or a compressed file and decompressor...

- shittiest API: [matplotlib](https://matplotlib.org/) - most addictive: [collections](https://docs.python.org/3/library/collections.html) ([.Counter](https://docs.python.org/3/library/collections.html#collections.Counter)/[.defaultdict](https://docs.python.org/3/library/collections.html#collections.defaultdict)) - recurrently useful: [glob](https://docs.python.org/3/library/glob.html), [shutil](https://docs.python.org/3/library/shutil.html), [BeautifulSoup](https://www.crummy.com/software/BeautifulSoup/bs4/doc/) - "i didn't know this was built-in, but now this one time that i need...

I encountered this infographic today: [Characteristics of National Socialist Language according to Victor Klemperer (1947)](https://commons.wikimedia.org/wiki/File:Kategorisiertes_Exzerpt_aus_Victor_Klemperers_%22LTI_-_Notizbuch_eines_Philologen%22.png) whose book [LTI - Lingua Tertii Imperii](https://en.wikipedia.org/wiki/LTI_%E2%80%93_Lingua_Tertii_Imperii) I remember being mandatory reading in school. I...

(work in progress) ## Who this is for Maybe you should only read this if you don't want to go into the hobby yourself. One of the great advantages of...

- existence - consciousness - relativity (of simultaneity, time dilation, frame dragging, formulas) - true randomness (e.g. [particle decay](https://en.wikipedia.org/wiki/Particle_decay)) - nature/interrelation of [dimensionless constants](https://math.ucr.edu/home/baez/constants.html) - rotation