Apr. 25th, 2017 08:50 pm
liv: In English: My fandom is text obsessed / In Hebrew: These are the words (words)
[personal profile] liv
I made the classic mistake with Passover this year, of getting worked up and stressed about the practicalities of it instead of preparing spiritually. Actually it all went completely fine, but it wasn't until the last day of the festival, when all the organization was over, that I actually remembered to feel joy and celebration for being free.

contains religion )

Monday was just wonderful, though. That was when it really started to sink in that not only was I actually happy at being redeemed from slavery, but I am incredibly joyful and grateful to have such an excellent family. Both the ones I grew up with who are so great to celebrate Pesach with, and my family of choice who are incredibly supportive about joining in with my festivals and including me in theirs in a really respectful and non-pressurey way. We played D&D with [personal profile] jack GMing, something we've been meaning to do for ages and just not had time for, and it was really fun and relaxing.
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[personal profile] jack
Last post, I decided that what's "really there" for fundamental particles is typically a quantum thing, specifically, a probability wave of possible values a particle can have which appears to collapse into one particular place only when its interacted with.

However, this "collapse" sounds very suspicious. If two different particles emitted from the same particle decay (or something?) are known to have opposite spins, but not what those are, do you get all the usual wavelike behaviour, can each self-interfere, etc? Yes, of course. And yet, when you finally measure them, lo, the spins are still conveniently opposite.

Something that looks like collapsing to a single answer seems to happen, because when we measure them, we always do get a single answer. But that's not an event. If you measure one, does a spooky force reach out across the room to force the other to collapse at the same time? Does it collapse the value you measure, but still allow other properties of the particle to continue being multiple? That looks awfully like what happens, but it should seem wrong to start with, even before you ask "if you measure one particle, does the other know to wait until you interact with it, but store the answer you're going to find until then" and "if you measure them both a long way apart, does the collapse rush faster than the speed of light (aka backwards in time) to make sure both answers agree with each other?"

Any theory involving particles "knowing" or "waiting" or "choosing" depending on how you measure them sounds very unlike physics.

And yet, the particles go on behaving like probability waves until you measure them, and if they came from a shared source, then when you measure them, they DO agree. Just as if this spooky shit was happening. What might be going on?

Hypothesis 1

Whenever one particle collapses, a spooky force travels faster than the speed of light to the other particle, and then hangs around telling it what value it will have when it's finally measured.

This *works*, but hopefully you can see why it doesn't seem correct.

Hypothesis 2

Just like hypothesis 1, but we try to avoid thinking about it. This is not really satisfying, but it works and is a pragmatic default for many physicists. (Sort of Copenhagen interpretation?)

Hypothesis 3

Even while a particle is still smeared out across a probability of many potential positions/values, it has a hidden property which tells it how it's *going* to collapse when something interacts with it. Like, not necessarily "hidden", but basically some sort of determinism.

This is roughly Hidden variables interpretation (right?)

This would be fairly satisfactory except that it turns out it's impossible.

This is not very mysterious or controversial, but involves more simple probability than I can manage to wade through. Look up the EPR paradox or the Bell inequality. The idea is, you choose something like polarisation angle that could be measured at many different angles. You randomly choose to measure at different angles for two particles known to have opposite polarisation. There are various correlations between the probabilities when you measure the two particles at an angle to each other (the detectors neither parallel nor orthogonal). You can prove that no possible hidden value would make all those correlations true at once, but QM does and that's what's actually observed.

I can't really prove this to myself, let alone anyone else, but AFAIK no reputable physicists doubt that it's correct, only maybe what it means, so I'm willing to accept it as true.

There are still edge cases, like, people argue whether the experiments have ABSOLUTELY DEFINITELY proved this spooky collapse effect would have to go faster than the speed of light, rather than going at a possible speed (but depending what exact moment sets it off, etc). But I don't find any of that very persuasive. A spooky collapse effect which is triggered by measuring a particle and goes at the speed of light or below, while not ABSOLUTELY DEFINITELY ruled out, doesn't sound at all likely. I don't think anyone seriously expects that if they make the distance apart in those measurements a bit bigger, they'll suddenly get difference results: that's not how you expect physics to happen.

Hypothesis 4

Those weird quantum probability waves don't only exist for tiny particles, they happen just the same for everything including macroscopic objects, humans, etc, but you can't observe the effects except for tiny things (because to see interference you need something isolated from other particles, and you need to be able to detect its wavelength, which is way too small for anything bigger than a molecule).

I'm still working on understanding *why*, if that's true, it produces the effects we see. But most physicists, even ones who don't like this line of reasoning, seem to agree that it *would*.

This makes everything above non-mysterious. How does the collapse effect move around? It doesn't. Every "collapse" is just another probability thing of a scientist (and all the other macroscopic stuff) interacting with a particle and becoming two never-interacting possible scientists, one observing A, one observing B. We know both happen. We know, when we measure things light-hours apart and then compare notes, that we will be comparing notes with the version of the other scientist who observed the opposite polarisation to what we saw, while our shadow twin will be comparing notes with the other scientist's shadow twin.

The multiple non-interacting versions of the macroscopic world are called "many worlds" or "parallel universes" which admittedly makes them sound very implausible.

It seems like, this leaves some things to ponder, but resolves a very large part of the things people find mysterious. And yet, many physicists really don't like it. I need to read the bits of Scott Aaron's book about different interpretations[1], because I trust him to know more about this than me and he doesn't seem convinced.

Footnote [1]

The hypotheses above are called interpretations. I don't know if my ones exactly map onto the real ones. The name is because they all predict the same results, and yet seem quite different.

You can argue, "they're the same", but I don't quite agree. See for instance space outside our light cone -- we have no way of observing it, so the hypotheses "it's got physics just like ours but with different stuff there" and "it's all purple unicorns" are both possible, and yet, the first one seems a lot more like actual reality.

In both cases, it sort of doesn't matter, but you can imagine (a) which answer is most plausible, most useful, easiest to work with, or least ridiculous (b) if we're wrong and there IS some difference, which one would actually be found to be the one that exists.
jack: (Default)
[personal profile] jack
You should be able to select multiple pokemon from your reserves when choosing which pokemon to fight with.

When you're training a friendly gym, the default pokemon selection should avoid pokemon very slightly higher CP than the ones you're fighting that automatically reduce the prestige gained by 40%.

"Vaporeon used hydropump" should always come slightly before the special move takes effect, rather than slightly after.

If your pokemon is on 5% health and you switch to another pokemon and that one is knocked out, its default replacement should be the *next* one, not the one which will be knocked out instantly. (Is there a shortcut for "next pokemon" without going through the pokemon select screen?)

If your switch pokemon and while you're in the pokemon select screen, your previous pokemon faints or you forget which pokemon you started with, and you click frantically click a pokemon again and again trying to select it and nothing happens, it should select that pokemon even if it's the one already selected.

If you select "run away" there should be a quick gesture to do so in a single click, without needing to get to the "yes" button before your next pokemon is knocked out too.

It me

Apr. 25th, 2017 02:53 pm
hollymath: (Default)
[personal profile] hollymath
Here's me doing The Worst Clerical Job in the World on Saturday. I look happy because [ profile] LadyPHackney, who was taking the picture, made me it turned out okay I think.

jack: (Default)
[personal profile] jack
This has so much I love.

An interesting space empire, full of detailed calendrical minutae, customs, etc, etc.

A mathematically gifted protagonist struggling to serve loyally as a minor officer in the infantry.

A legendary rogueish maybe-monster.

The empire is built on basically mathematically-based magic, following particular social codes (both on an "infantry formation scale" and a "society as a whole" scale) allows various exotic technologies to work that wouldn't otherwise, including more powerful weapons and other tech that enables the empire to function at all.

I had some reservations too, which may contain spoilers, so will be moved into a follow-up post. Please make any comments which contain spoilers on that post too.

Interesting Links for 25-04-2017

Apr. 25th, 2017 12:00 pm
jack: (Default)
[personal profile] jack
After running a couple of roleplaying sessions with quad & family, I would like to try to run something regularly in addition to whatever I run with them. I'm probably going to aim for once a month depending on interest.

I'm going to start by running a lightly revamped version of the DnD 5e one-shot I ran for quad before.


Passengers on a ship, driven far out to sea in a storm and beached for repairs on an abandoned island. 30 years ago it was home to a pirate lord, Erik Twicecursed and his BFF Grignir Hammerhead. While repairs succeed, the captain asks for volunteers to explore the abandoned and reputed-cursed pirate lair.

There may be treasure. There will almost certainly be combat encounters. Hilarious misunderstandings of the skill system and trigger happy party wizards are not guaranteed, but likely.

DnD 5e. For people new to roleplaying I will give you a pregenerated 1st level character sheet but suggest you invent a character who's more interesting to you, and change any specifics accordingly. If you're familiar with the system you're welcome to generate a 1st level character however you like.


This Saturday 2pm. It may run into the evening, in which case we'll probably have pizza.

If you're interested, comment here or email me by midnight Fri, and I will send you directions. (North cambridge, but may be lifts available if transport is an issue.)

You don't need to bring anything. If you're excited to do so anyway, things that could be useful: bring 5e books if you have them; read a little about 5e online; think about a character concept, not so much detailed background, as what they like doing and how they might be connected to other characters (member of ships company? bodyguard? relatives?)

Also let me know if you'd be interested in future one-shots or campaigns.


I have a campaign in mind following this session, but think it makes sense to schedule several one-shots and see which people are interested in coming back to.

People were very enthusiastic about my putative vorkosigan campaign, and I would really, really like to run that, but it will not be this weekend, it needs more prep time. But if you're interested and think you could actually make time to come, please let me know. (If it happens I plan a series of connected stand-alone sessions, so I might well be able to run one if I'm in london for the day, even if other sessions take place with people in Cambridge.)

The Blood is the Life for 25-04-2017

Apr. 25th, 2017 11:00 am
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[personal profile] miss_s_b

Inbox non-zero

Apr. 25th, 2017 09:48 am
jack: (Default)
[personal profile] jack
I realise I've had *another* shift in habits.

Now I'm keeping a daily/weekly todo list more as standard, any emails I need to reply to on a specific timescale get duplicated into that system.

But that means I've shifted to starring emails that need a reply, and going through them occasionally, and the rest of my inbox has gone back to being "everything I've received recently0-ish that might be relevant". But mostly without the problem of "agh the important emails got lost".

Of course, gmail divides that into five folders: primary; social media notifications; corporate mailing list type stuff, and a couple of others. I could do something similar with filters. But it would be harder to cope if those were all muddled together. Non-starred mail in primary tends to be "conversations which are relevant in the next few days but don't need a reply right now". I tend to use social media notifications for marking comments I'd like to reply to, although that's fiddly. And the others rarely need any action (if they do, it's usually important and I move it into primary).
miss_s_b: (Default)
[personal profile] miss_s_b
I've come across this a fair bit the last few days (can't think why it's been coming up *rolleyes*), and as it's a big frustration for LGBT+LDs I thought I'd better post about why.

Lots of people high up in the campaigns department at LDHQ think it's great to say that "we achieved equal marriage". They think that because we campaigned for equal marriage, and the Same Sex Marriage Act passed, we should trumpet our achievement. They think that calling it Same Sex Marriage is bad "framing" and Equal Marriage sounds better*.

The problem is that although we did campaign for equal marriage, we didn't get equal marriage. Here is a list of some of the things that remain unequal:
  • Northern Ireland. There is no recognition of same sex marriage there at all.

  • The Spousal Veto was a part of the Same Sex Marriage Act and actually made things worse for trans people. It's not extant in Scotland, but still applies in England and Wales.

  • Likewise, to get a gender recognition certificate prior to the Same Sex Marriage Act, if you were married, you were forced to have your marriage annulled, even if your spouse was supportive. These stolen marriages have never been restored, despite Same Sex Marriage now being legal.

  • Same sex spouses do not enjoy the same pension rights as mixed sex spouses. This is obviously unequal.

  • The church of England and the church in Wales are legally prohibited from performing same sex marriage ceremonies. This is manifestly unequal for same sex couples who are adherents to the state religion.

  • Adultery and non-consummation. To commit adultery, you must have vaginal intercourse with a member of "the opposite sex". Yup, not only is the strict gender binary embedded in law, but so is the necessity for PIV to happen for it to count as sex. This is... problematic for people who do not adhere to the strict one man, one woman, no genderqueer people model of relationships. Non-consummation of marriage and adultery both rely on PIV sex. And sure, reasons you might split up don't apply at the moment of marriage, but not every marriage will last, and equity in the divorce courts is surely a consideration before we start calling it equal marriage?

  • The special requirements for registering premises for the conduct of non-CofE religious same-sex marriages are more restrictive than for opposite-sex marriages in religious premises. If the premises are shared by several small denominations - which is often the case with evangelical, African and pro-LGBT churches - every last one of the faith organisations which share the premises has to give their permission for the premises to be used for same-sex marriages. In effect, anti-gay churches have a veto over pro-gay churches.

  • There's no humanist marriage in England and Wales (despite the best efforts of the lovely Julian Huppert) - which affects both mixed sex and same sex couples, but still means that humanists are second class citizens (unless they live in Scotland). Equal marriage should be equal for all beliefs (and lack thereof) as well as for all genders and sexualities.
Now, imagine you are one of the people who is affected by one of these things. Imagine you have been faithful to your partner for decades, and you've finally been allowed to marry under this legislation, and you retire loving and happy, only to discover that your pension rights are not equal.

Imagine you are a trans person, and your spouse has been supportive all along, and first you had your marriage stolen because that had to happen for you to get your gender recognition certificate, and when that happened you got a civil partnership because that was the best that was available and you loved your spouse, and then when same sex marriage came in you had to get married for a third time to convert your civil partnership into a marriage, and you'd meantime been supporting other people going through transition and the spousal veto had applied to some of those people... How would you feel in that situation if you were told that we'd achieved Equal Marriage?

Imagine you were the chair of an LGBT+ campaigning organisation. Imagine trying to persuade people that there are still inequities that need to be corrected, that people are still suffering injustices that need to be righted, that work still needs to be done, when everybody says but we achieved Equal Marriage, didn't we? What are you fussing about?

Imagine trying to persuade other LGBT+ people to vote for your party, when they can look at what your party is saying about "equal marriage" and think but they are completely tone deaf to the actual concerns of LGBT+ people, or else they would know that 'equal' marriage is nothing but!

For anybody, in any of those situations, Lib Dems trumpeting we achieved equal marriage! is going to feel like a proper slap in the face. It's going to feel like the inequalities and injustices that you suffer do not matter to Lib Dems. Equal Marriage, as framing, makes a very ugly picture indeed if you are suffering from one of the unequal effects of the Same Sex Marriage Act.

Please, please, please, for the love of Cthulhu, if you are a Lib Dem, stop saying we achieved equal marriage. We achieved same sex marriage. There's still a way to go before it's equal. Our leader gets this. Please get it too.

* NB: Our Glorious Leader is not one of these people, and completely gets everything I am posting about here, and that's yet another reason why I get annoyed with partisan Labour types going BUT TIM HATES THE GAYS!!!!! at me. Apart from anything else the conflation of gay rights and LGBT+ rights is infuriating.
jack: (Default)
[personal profile] jack
To expand on the point in the previous post, is it right that electrons bend round corners, like sound etc? Aka diffraction? This is how electron microscopes work, right?

That means that a probability wave is an actual thing, right, not a description of a particle? Does it?

But if so, how can anyone cling to the idea that they're a particle with a particular position. Particles don't do that. Do they?

And yet, there's massive amounts of effort to come up with interpretations of quantum mechanics that retain the "in a particular position" idea. Or the idea of hidden variable theory seems to be that the electron is in multiple places at once, but when you finally measure it, it was predetermined what value you were going to find[1]. If you've *already accepted* the multiple-places-at-once thing, AND the wave-physically-exists thing, what do you gain by assuming it then suddenly stops doing that at some unspecified point?

[1] "Predetermined" to avoid the "spooky action at a distance" problem, of, if you have a probability wave describing *two* particles (say, emitted in opposite directions with opposite spin), and measure them waaaaaaay far apart, how do they "know" what value to take to ensure they end up opposite, when there's no way for a signal to travel between them. Leaving aside the absurdity of a "hey, collapse this way" message even if it were slower than light.
jack: (Default)
[personal profile] jack
Hypothesis 1: Electrons are tiny objects that have a specific position

Evidence: If you bounce something off an electron it hits the electron in one place. For all the talk of "in multiple places at once", you never shoot something at an electron, it bounces off the electron, and it bounces off the electron *somewhere else*.

Evidence: There's always a particular number of electrons. You never have two and a half electrons.

Hypothesis 2: Electrons are waves

Evidence: If you have an electron "orbiting" an atom, it's not at a particular place, it's smeared out over a whole sphere (or sphere-ish shape?) round the electron aka "an electron shell". Indeed, if you have two electrons in an electron shell, I don't know if you can even tell them apart, just that there's two. In metal, ALL the electrons are ALL OVER. They really don't have a particular position.

Evidence: If you fire one at a corner of an object, they diffract round it (is that right??)

Evidence: If you fire one through one or two narrow slits, you get interference bands, where "electron from here" and "electron from *here*" combine to give a dark band of "no electrons detected". This happens to waves. It does not happen to objects.

Hypothesis 3

This takes longer to explain. Imagine you have an object, but its position isn't certain, you're doing a calculation like, "if there's an x% chance it's here, and a y% chance it's there, and it bounces off this, then it might be anywhere along this line with a chance proportional to the distance..." etc. We do that all the time instinctively. But we mostly expect that the object actually *is* in one particular place, we just don't know what it is.

Suppose that instead of a mathematical convenience, what an electron *actually is* is a probability distribution like that, except for:

(a) When something interacts with it, it interacts with one point in the distribution chosen with the relative likelihood of that point, and from then on only that matters. Except if the other particle is of uncertain distribution too, then you get a probability distribution over both of them, until you actually check at least one of them.

(b) The probability distribution changes obeying equations which mostly describe a particle moving in a straight line (or a curve according to a force acting on it), except that it's all continuous, and if you have a sharp corner, the probability spreads out round it (as if the particle's path was bending).

(c) The probability not only has a magnitude, it has a direction (usually represented as a complex number, where the actual probability is the magnitude). If two probabilities have opposite signs, they cancel out. And it changes as it moves, analogous to wave oscillating, eg. light consisting of electric field waxing while a magnetic field wanes, etc.

The third point (c) is par for the course for waves: waves almost always involve something oscillating in both directions away from a rest point. But it's very spooky to see with things that look like particles: if there's a 5% chance of an electron hitting this particular point on a screen having gone through slit A, and a 5% chance of an electron hitting this particular point having gone through slit B, what's the chance of it hitting that point at all? Well, it might be 10% or it might be 0% or it might be somewhere between, depending

Evidence: Everything above in both previous hypotheses

Evidence: Everything behaves like a particle even if you didn't expect it (eg. light has photons)

Evidence: Everything behaves like a wave even if you didn't expect it (eg. you can fire small molecules through slits and see them do wave-like things like interference).

Evidence: The cancelling-out thing. You can construct this out of specific particles with clearly defined values (qubits) in building a quantum computer, and this is exactly how you find probabilities behaving. (Right?)

Correct me?

Is (b) really true? That's what it looks like from what I've read. But is that basically accurate?

If not, where have I gone wrong?

If so, it seems such an obvious "this is how we know these probability thingies actually exist" why isn't it front and centre in more explanations?

Is the description of probabilities right?


Hopefully I will think myself through some more examples. But this is the major point to get your head around first with quantum mechanics.

I think everyone would say the first two hypotheses are more natural. But they don't fit the evidence. The third hypothesis fits ALL the evidence, even though the hypothesis itself looks screwy.

And as far as I can tell, physicists still argue about which parts of this are actually there, and which are mathematical descriptions of something else, but agree that if you take Hypothesis 3 and just assume everything works like that, then you get all the right answers.

Money and Government

Apr. 24th, 2017 06:07 pm
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[personal profile] andrewducker
The UK takes in 34.4% of GDP as tax*. This is a bit less than the EU average (35.7%), about 6% less than Germany (40.6%), and a chunk less than the countries at the top end (Sweden at 45.8%, France at 47.9%, Denmark at 50.8%).

Is this the major source of the UK being awful at providing a safety net at the moment? Or are there other things that play a significant part in exacerbating the situation?

And are those figures comparable? In the UK that 34.4% has to cover the vast majority of healthcare, while in Germany healthcare looks to be largely on top of that - which would have an effect there (Although that would make the overall figures even higher in Germany).

I'm not actually sure how much I trust the figures in this case either. That page has the USA at 26%, whereas the figures here show total US taxation as either 18% (Federal), or 42% (Federal, State, and Local).

*All figures from here.

Con or Bust Bidding is Open!

Apr. 24th, 2017 08:15 am
ann_leckie: (AJ)
[personal profile] ann_leckie

The annual Con or Bust auction has begun! You can bid on all kinds of awesome things, but of course I’m particularly interested in this one:

A signed ARC of Provenance

The ARCs don’t even exist yet, but as soon as they do I will sign one and send it off to the high bidder.

Also, check out the other fabulous auctions going. I’ve seen some really cool stuff mentioned, so poke around and check it out!

Mirrored from Ann Leckie.


Apr. 24th, 2017 01:20 pm
liv: alternating calligraphed and modern letters (letters)
[personal profile] liv
So the wonderful amazing [personal profile] ghoti_mhic_uait gave me a proper alto recorder as an afikoman present. I am slightly awkward about it because an actual musical instrument is a bit bigger than the sorts of things my family generally expect as Passover presents – it's a gift-giving occasion, yes, but it's not anything like on the scale of Christmas. But I am also really really happy, it's the most absolutely perfect present.

babbling about me and music )

And I'm allowed to play the recorder. Just like I learned with piano all those years ago, I don't have to be a brilliant performing soloist, I can just play because I want to. And with work, with amazingly satisfying work, better than any video game, I can get to the point where my playing sounds at least pleasant. But I do in fact want to focus on more social sorts of playing, not learning a bunch of sonatas to a mediocre standard.

So does anyone have any recs of social sorts of music? Melodies of songs, perhaps, or even something aimed directly for people who want to play recorder to accompany singers? The readthrough people have a songbook, right, with dots in? Would it be possible to obtain a copy? I'm happy to pay for music but I'm spoilt for choice so I need some ideas first. And I am somewhat interested in online tutorials though I think I can mostly learn fine just by practising pieces, cos it turns out I know how do that. I like baroque music a lot, and there happens to be quite a lot available for recorder, but I am not wedded to only playing baroque, any style is fine, and I'm quite positively interested in recorder versions of pop music, if that exists. (And if it's set for descant, well, all that rusty music theory means that I do in fact know how to transpose.)

Stuff - especially schools

Apr. 24th, 2017 12:31 pm
lnr: (Default)
[personal profile] lnr

Wow, I'm faintly astonished by the amount of stuff being posted here on DW at the moment. I think I'm going to have to investigate reading on my phone rather than just in breaks at work or I'll never keep up :)

So since we got back from the peaks:

  • The boiler broke, but was fixed within 24 hours with a £300 quid part. Thank goodness for the annual £160 service contract!
  • Easter happened
  • We had a visit from Rae and Adam and enjoyed the unexpected sunshine in the Botanic Gardens
  • We went for a bike ride over to Whittlesford and Thriplow, with a picnic lunch, and back via Harston Red
  • My phone came back from its holiday in Sheffield, safely in one piece
  • Primary school place application results were announced (more on that below)
  • The UK announced a snap general election
  • Mike had a birthday
  • We survived three lovely birthday parties for four four-year-olds in two days
  • Ireland seem to be on the way to huge changes in abortion law
  • The consultation phase on organisational change ends today

Many positive things there, but the organisational change and general election, on top of general brexit fears, are a bit tough. Still the hardest thing at the moment is probably the primary school results.

schools )

Finally, a meme: meme )

The Blood is the Life for 24-04-2017

Apr. 24th, 2017 11:00 am
miss_s_b: (Default)
[personal profile] miss_s_b
siderea: (Default)
[personal profile] siderea
A set of videos, of particular interest to programmers, compliments of Metafilter. Delightful, recommended.

These are lectures/demos of brilliant stupid programmer tricks:

1) A DOS executable that only uses printable bytes. (SLYT, 25:40 (yes, long, but so worth it, and accessible to non-programmers), audio and visual both required)

2) On the Turing Completeness of PowerPoint (SLYT, 5:33, audio and visual both required)

This is a work of art with accompanying making-of:

3) A Mind is Born (article with embedded SLYT, 2:21, primarily audio plus cool but inessential visuals) - a 2+ minute music video that is, in its entirety, a 256 byte program for the Commodore 64. This is now my answer to "can a computer program, in itself, be a serious work of art?" I understand about one word in five of the article; someone on MF said of it, I read most of the how it was done link, and I've been a programmer for 20 years, and I still say the answer is "black magic".

Oh, and a bonus blast from the past – I just got done fixing my broken video links post migration from LJ – 4) Life in Life (SLYT, 1:31, primarily visual, with cool but inessential audio). h/t [personal profile] nancylebov. I originally posted here; I had tagged it "sci", but I dunno, what do we call programming with cellular automata?


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