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sideways-view.com
| | www.kuniga.me
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| | NP-Incompleteness:
| | fedd.it
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| | [AI summary] The article explains the features and technical aspects of SimpleX Chat, including its use of blockchain, end-to-end encryption, and decentralized network principles for secure communication.
| | maxdemarzi.com
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| | How does the saying go? Opinions are like bellybuttons, everybody's got one? So let's say you have an opinion that NOSQL is not for you. Maybe you read my blog and think this Graph Database stuff is great for recommendation engines and path finding and maybe some other stuff, but you got really hard problems...
| | www.jeremykun.com
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| Last time we worked through some basic examples of universal properties, specifically singling out quotients, products, and coproducts. There are many many more universal properties that we will mention as we encounter them, but there is one crucial topic in category theory that we have only hinted at: functoriality. As we've repeatedly stressed, the meat of category theory is in the morphisms. One natural question one might ask is, what notion of morphism is there between categories themselves?