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@crackle A very strange dungeon has sixteen cells, laid out in a 4x4 grid. Each wall between cells has a door, and in each cell is shackled a prisoner. One corner cell has the exit, and in the opposite corner cell the prisoner has got free.

That prisoner is a homicidal maniac who will bloodily kill everyone encountered as they travel from cell to cell. They also hate the sight of blood, so will not re-enter a cell in which a death has occurred.

How can they escape?

I need some bloody math related blog ideas.

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Think of all of the folks that think that Slack/ IM are a great way to communicate.

At some point they'll realize they've created an inbox with expectations. They'll start trying to figure out how to make themselves less available. The beauty of email is once you realize that you can delete messages and not have to see them again email becomes a game you can win.

Problem is for a lot of folks their inbox is their todo list because they don't have a good system for managing it outside of email.

Show thread

Friend: *overexplains an obvious solution to a problem*
Me to myself: don't say it
Me to myself: don't say it
Me: "That's a trivial result"

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My friend works in liquor production

With stills of astounding construction

The alcohol boils

Through magnetic coils

She says that it’s proof by induction.

Stealing someone's configuration for a program and tweaking it to the point where, over the course of some time it becomes your own is truly one of the most liberating feelings.

Really enjoying OLauncher, minimalist and has a low memory footprint.

Installing offline archives of math stack exchange and Wikipedia so I don't have the distraction of the internet whilst I'm studying, woo!

Ack, I would read more of local news here in my country but it all seems to be plastered with nonsense and gossip.

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Wikipedia, the free online medical encyclopedia anyone can plagiarize: Time to address wiki‑plagiarism (

In this editorial in _Publishing Research Quarterly_, Michaël R. Laurent identifies five pubmed-indexed papers that copied content from Wikipedia without crediting it (noting that this is much more prevalent in predatory book and journal publishing), and argues that it should be treated as a form of academic misconduct.


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@crackle Cool.

I can also recommend " How to Think Like a Mathematician" by Kevin Houston

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@crackle Do you have a copy of "Proofs from The Book" ?? That's got a wide range of material, and some of the proofs there are easy, some are hard, but all are worth grokking.

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@crackle Not a problem! If you have any questions, feel free to ask. I'm not an expert, but there might be things I know that would be helpful.

There are gazillions of articles around, mostly well-meaning, but rarely hitting the spot for what you might want to know. I wrote one too:


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