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Personal website of qntm. THERE IS NO ANTIMEMETICS DIVISION The legendary, brain-melting sci-fi thriller. OUT NOW. (Also award-nominated!) Today in Things Of Interest... Fiction ...

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Visit qntm.org → RSS feedOn Hacker News Nov 2008 – Jan 2026

Life, Learning & Writing 13Society, Policy & Culture 12Software Engineering 8History & Retro Computing 3Science & Space 2Programming Languages 2

3

Lena

A note from the author You can now buy this story as part of my collection, Valuable Humans in Transit and Other Stories. This collection also includes a sequel story, titled "Driver". This article is about the standard test brain image. For the original human, see Mi...

5

How to Destroy the Earth (2006)

Preamble Destroying the Earth is harder than you may have been led to believe. You've seen the action movies where the bad guy threatens to destroy the Earth. You've heard people on the news claiming that the next nuclear war or cutting down rainforests or persisting in releasing...

6

Developer Philosophy

Amazing as it may seem after all these years, there are still junior developers in the world. A few weeks ago at work we had a talk where senior developers (including me) were invited to spend around five minutes each talking about our personal software development philosophies....

8

Suicide Linux

You know how sometimes if you mistype a filename in Bash, it corrects your spelling and runs the command anyway?* Such as when changing directory, or opening a file. I have an idea: Suicide Linux. Any time - any time - you type any remotely incorrect command, the interpreter cr...

9

Programming trick questions

Note: me telling you up front that these are trick questions rather gives the answers away in most cases, but oh well. Questions Question 1 What's the fastest way to sort a jumbled array, given that the array has length N and contains all the integers from 1 to N inclusi...

13

So you want to abolish time zones

Laudable! Let's take a look at some of the changes that arise from this, through a simple case study: making an international phone call to a relative. Before abolishing time zones I want to call my Uncle Steve in Melbourne. What time is it there? Google tells me it is currently...

15

Time travel in Braid

I bought Braid on the promise of lavish visuals and neat puzzles with temporal mechanics, and on this basis I was rewarded. I found some frustration with the controls, which I eventually traced to dodgy keyboard drivers - the game wouldn't register the up or down arrows while I ...

19

Solving Tetris in C

Exactly one of the following statements is true. In Tetris, you can always get at least one line before losing. In Tetris, a sufficiently evil AI can always force you to lose without getting a single line, by providing bad pieces. Which one? Prove it. The setup I crea...

20

How to destroy the earth

Preamble Destroying the Earth is harder than you may have been led to believe. You've seen the action movies where the bad guy threatens to destroy the Earth. You've heard people on the news claiming that the next nuclear war or cutting down rainforests or persisting in releasing...

21

z/OMG

Two weeks ago I was on a Project Management course at work, which was highly enjoyable and very involved. Project management for a company this big is evidently a very complex and rigorous process involving all kinds of procedural steps and checks and formal presentations of stuf...

23

Fine Structure

Fledgling physicist Ching-Yu Kuang has discovered a Rosetta Stone for all of physics, a treasure trove of advanced scientific breakthroughs beyond all imagination. Exotic energy, teleportation, FTL, parallel universes and near-infinitely more wonders are just within reach; a pr...

24

Lena (first draft)

A note from the author This was a very quick first draft, written in around two hours as part of my 30 More First Drafts project. You can now read the finished short story. This article is about the standard test brain image. For the original human, see [[Miguel A...

25

So You Want Continuous Time Zones

At present the world is partitioned into a finite number of large, discrete time zones. A time zone is an area on Earth where all of the clocks are set to the same time. An example of a time zone is America/Santiago, an area which covers continental Chile. All the clocks in this ...

26

Ra

Magic is real. Discovered in the 1970s, magic is now a bona fide field of engineering. There's magic in heavy industry and magic in your home. It's what's next after electricity. Student mage Laura Ferno has designs on the future: her mother died trying to reach space using m...