August 21st, 2017
fluffymormegil: @ (Default)
posted by [personal profile] fluffymormegil at 07:12pm on 21/08/2017

On further probing, it appears that starting up gnome-inform7 has a race condition. Sometimes it crashes at startup, sometimes it doesn't, and there is no externally visible rhyme or reason to why.

The existence or otherwise of its data directory is a red herring.

jack: (Default)
posted by [personal profile] jack at 05:13pm on 21/08/2017 under ,
History

As a teenager I never drank tea or coffee. I must have tried them at some point, but never felt the desire.

At university I started drinking both. I can't remember exactly, I remember having them as a ritual something to do when hanging out with friends. IIRC I drank instant coffee, and real coffee tasted too bitter.

And I think I reached a point where I needed coffee and got dopey and too tired to get up without it, either at university, or after I started working. Unrelated to the caffeine (I assume?) I also had student-y programmer-y sleep patterns, always wanting to sleep a bit later. I don't know how much that was inbuilt physiology and how much it was putting things off, including going to bed and doing things in the morning.

At some point, I started drinking real coffee for preference, and instant coffee tasted bad.

When I started dating Liv, I drank a lot more tea, because we'd usually make a pot together. And I started to feel like coffee was too abrupt, and tea gave a slightly slower caffeine release, and gradually switched to drinking tea almost entirely: I'd happily drink coffee if it was served somewhere, but didn't usually drink it at home or at work.

When I started dating ghoti, I started drinking coffee again, because she drank coffee more often and I liked companionably drinking the same thing. I started with mostly instant coffee, and to date, still mostly drink instant coffee, although I also like real coffee when I have it.

Now I tend to switch, drinking instant coffee at home (because it's quicker), tea at work (because I want a break from the screen to faff around in the kitchen for 10 min), and whichever I feel like if I drink something out.

I never really learned to like espresso based coffee, espressos taste much too strong, and all the mixed drinks taste weird. I used to like mochas occasionally. I usually like plain black tea with milk, or plain coffee, with milk.

Except when I'm abroad, I generally drink whatever's common locally if I'm ok with it at all.

I don't track how much I drink. It's probably quite a lot, because I drink it whenever I feel like, not at fixed times. But I used to feel like it was doing something weird, when I'd be completely wrecked when I *didn't* have caffeine, whereas now, I definitely need some, but if I get a drink within an hour or so of getting up, I don't feel completely zombified until then.

So I used to toy with the idea it'd be healthier to give up (ie. awakeness juice was just borrowing future awakeness and immediate gains were offset in future losses). But now it feels like, the status quo is doing ok.

ADHD

A couple of people have commented that they have ADHD or suspect they possibly have subclinical ADHD or something related, specifically that mild stimulants make them feel calmer, even right before sleeping.

That's very me. I've never tried to avoid late-night caffeine have haven't noticed it having any affect on my sleep. Which inclines me to think the status quo is possibly fine.

Away

The one big inconvenience in needing caffeine used to be when I'm away, especially at a con in a conference centre, but also, just anywhere on holiday where I'm out all day and don't have decent tea or coffee facilities where I'm staying.

I found it a big faff needing a certain amount of coffee or tea, but that not always syncing up with when I want to sit down and "have a coffee". And a crapshoot whether there'd be somewhere providing bog-standard coffee or tea cheap, or if the only source was a fancy coffee place. Especially if I'm in a rush, or it's all in a foreign language, or whatever.

At some point, I experimented with bringing caffeine pills. I'd studiously avoided them before since having caffeine without the ritual of drinking it seemed like it would only exacerbate the feedback loop of taking more and more to make up for potential caffeine-crashes. I still avoid them when I'm *not* away somewhere.

But I actually found it really helpful, it basically solved the problem for me. I usually need a couple of actual hot drinks throughout the day, usually one or two in the morning with breakfast and one sometime during the day. But otherwise, having a couple of pills in the interim, either physiologically or placebo-y, made me feel fine. I also remember to drink liquid. It made the whole thing a lot simpler.

I can't help other people though, especially tea drinkers in places where there's not much tea.

Questions

Which bits of those experiences resonate with you and which don't?

Most of my friends seem to default to tea *or* coffee, even though I remember by parents drinking one or the other depending on the circumstances. Do other people drink both at different times?

What is the relative caffeine in a cup of tea, a cup of coffee, and caffeine pill?

Does that status quo sound sensible or is there something else you'd recommend?
lnr: (Default)
posted by [personal profile] lnr at 02:03pm on 21/08/2017 under , ,
So, we had a fab holiday in Devon with family, slightly hampered by trying to organise lots of small bunches of people into doing things socially together when they all have different routines and mealtimes.


Wortham 2017


Friday: train down to Exeter to meet up with Steph and Dad, where we organise ourselves into two cars, and Steph and Dad drove us over to Wortham Manor, where Em and Mum were already settling in. Also joined by Gail and David, and Bob and Doreen for the first few days who mostly did their own thing in the daytime but were lovely company in the evenings and cooked some great meals!

Saturday: Day out to Bude, lots of fun building sandcastles and chasing waves, but cut short by the realisation we'd not bought enough car parking and weren't allowed to extend it.

Sunday: dad accidentally went off with our car seat in his car, so Em and Steph went off to see Launceton Castle while Mike, Matthew and I had a nice walk in the lanes near the house, and found an incredible blackberry patch. Grandad joined us in the evening, and sadly James had to leave us.

Monday: a rainy day, so we headed to the Fairground Heritage Centre near Lifton. I'd have liked a better look at some of the exhibits, but had lots of fun accompanying Izzy and Matthew on the dodgems, Izzy on the ghost train and Izzy and Ollie on the Chariot Racer - which was *very* fast. Chris and Kathryn managed to join us in the later afternoon which was lovely, and very brave of them to stay for tea with the whole clan :)

Tuesday: Mum's birthday. A lovely lunch out (where I learned the skill of *not* calling one of the chairs round the table "special" in front of three children), excellent food, shame about the service. A very late afternoon tea, with cake and scones and sandwiches and fizz, and Mike and I took an evening walk, and found deer and rabbits, but no badgers this year. We got back just before the rain :)

Wednesday: Off to Hidden Valley with Em and Steph and the kids. The Maze was a big hit with all of them, and they enjoyed the Indiana Jones trail and hunting for clues. I think the grown-ups might have quite liked to do some of the harder puzzles too. We also did an immense quantity of blackberry picking which the kids loved, and left more than enough for apple and blackberry crumble. (I fear eventually the rest went in the compost).

Thursday: last full day spent mostly at the beach at Bude again, wave hopping and paddling before a fish and chips lunch, then sandcastles, dam-building and a dip in the sea pool - Oliver very disappointed that it wasn't a *heated* pool. I braved a whole actual length across and back as well as some pottering about, but it really was rather bracing. A quiet evening as Em headed off early, and mum and dad out to Dinner, so Steph and Mike and I fed the kids and then had a somewhat bonkers last meal of fish fingers, burgers, chips, salsa and sour cream and chive dip :)

Sad not to manage to meet up with Kate and Nigel - but an excuse to go visit their cottage next year!

Photos on Flickr: Wortham Manor 2017

I think with the demise of Livejournal I'm going to be aiming to use Flickr as the best option for both hosting and sharing photos, as it's more visible to folk outside Facebook. If you dislike any of the photos just ask and I can make private or take down.
August 20th, 2017
jack: (Default)
posted by [personal profile] jack at 11:44pm on 20/08/2017 under , ,
So, Arrival (the film, adapted from the Ted Chiang story). I didn't have a lot to say about it. Aliens, were great. Linguist, was great. Kind-of-sympathetic kind-of-antagonist military were a bit gratuitous, but generally good. But I did have thoughts about a few specific things.

And, yes, I'm annoyed it wasn't EVEN MORE like a Ted Chiang story than it was, but please do adapt as many Ted Chiang stories as you can. The tower-of-babel one would be amazing...

Spoilers )
fluffymormegil: @ (Default)

Because the Inform 7 team refuse to release source of anything that isn't completely perfect, Inform 7 is non-free software.

EDIT: It was refusing to run on Debian 9 "stretch".

When I moved its user config directory (which I hadn't touched since last running it!), suddenly it worked again. Peculiar.

August 17th, 2017
jack: (Default)
posted by [personal profile] jack at 01:34pm on 17/08/2017 under
I went to Helsinki for worldcon.

It was lovely to see osos and liv.

I always find travel a little stressful but I have got better at not worrying. It's still feels like more of a hurdle than travelling locally, even if it shouldn't, but less so.

Helsinki was nice. I didn't do a lot of exploring, but some. I love water, and enjoyed going to another city based on the sea. Helsinki itself isn't on as many islands as Stockholm, but the harbour is covered with them and several tourist attractions are on one island or another.

We went to the zoo, and I went out to the island fortress Suomelina, both nice ferry rides. Suomelina was originally fortified by Sweden when Finland was part of Sweden, and later controlled by Finland and by Russia, with modern fortifications added to the older ones. The original fortifications are incredible to see, vast stone walls dozens of feet thick with tunnels at the bottom surrounding grassy courtyards, and at the main entrance, stone steps swooping down to the sea from a giant gate that frames the sun.

When we flew back, I realised what Liv had already told me, but not previously realised the extent of, that there really are continuous islands all the way from Finland to Sweden.

Zoo pictures are slowly being uploaded on twitter :)

Food was expensive but fairly easy. Few places had good vegetarian options already on the menu, but everyone I spoke to was eager to to be flexible and make up a cheaper price for a plate full of all the side dishes, without me needing to explain or anything.

Part of the expense is being in a foreign conference centre when the pound is getting weaker, but as I understand it, Finland *is* typically more expensive. I don't know enough about it, but my impression is, partly due to needing to import more food, and partly due to higher taxes and wages. But I wish people would acknowledge that latter part when complaining.

Worldcon was fun. Registration was incredibly quick with a computerised "scan barcode and print label" system, and everything was well organised apart from being over-full on the first two days.

Most of the panels I went to were decent but none stood out to me as amazing.

I loved seeing authors I cared about, at the steven universe panel, at the wild cards panel (and winning hugos). The quantum computing panel didn't tell me a lot about the theory but was fascinating for telling us about what computers had practically been built -- and apparently IBM have one you can run programs on online!!

I had a better balance between different sorts of things, I did some panels, some meeting people. I met up with people, but didn't feel like I was constantly missing out on fun things just round the corner. I got some books I was excited by but not too many.
August 15th, 2017
jack: (Default)
posted by [personal profile] jack at 07:45pm on 15/08/2017 under
Does anyone understand pilot wave theory even a little bit?

Prodded by several recent articles, I've been trying to follow what it says, and am still quite unsure of the realities.

The analogy usually presented is, if you have a small oil drop on the surface of water, and the water container is subject to a regular pattern of vibration, the water forms standing waves in shapes affected by the edges of the container and any obstructions in the surface of the water. And the oil drop tends to move across the surface of the water following the paths in those waves.

If you look solely at the oil drop, you can't tell which of two equal paths it would follow, but you can predict it will take one of them with equal probability, and predict its motion probabilistically. And if you couldn't see the standing water waves, you could deduce something in that shape exists.

You can even get some analogies for weird quantum behaviour like the an electron passing through two parallel slits and experiencing interference with itself: the water waves form possible channels for the oil drop, and the oil drop goes through one slit or the other, but ends up only at certain places on the far side.

However, the analogy to actual quantum physics is still unclear to me. Not whether it's true, but even what people are suggesting might happen.

Are people suggesting there's some underlying medium like the water? In that case, isn't there some propagation speed? The water waves exist in a steady state once all the obstructions are set up, but they don't respond to changes instantly. If the water trough were miles long, the oil drop would set off following water wave paths that existed at the point it passes through, not the paths corresponding to the obstructions that are going to be in place when the oil drop passes through them.

And yet, as I understand it, no-one expects a propagation delay in quantum experiments. People keep checking it out, but there never is: it always acts like an electron propagates just like it is itself a wave.

I agree, if there WERE some delay, if you changed the slits at this time, and got one result, and changed them at another time, and got another result, that would be massive, massive, evidence of something, possibly of something like pilot wave theory. But AFAIK proponents of pilot wave theory aren't advocating looking for such delays, and don't expect to find any.

Contrariwise, if this is just an analogy, and the quantum equivalent of the water waves (equivalent to the wave function in other interpretations of quantum mechanics) propagates at "infinite" speed, then... that is undetectable, indistinguishable from other interpretations of quantum mechanics. But it raises red-flag philosophical questions about what "infinite speed" means when all the intuition from special (or general) relativity indicates that all physical phenomena are local, and are influenced only by physics of nearby things, and "the same time" is a human illusion like the earth being stationary. Even if you don't expect to detect the pilot wave, can you write down what it should be in a universe where physics is local? Does that in fact provide a way to make QM deterministic and independent of observers, even if you change the reference frame? Because it doesn't sound like it will work.

FWIW, those are very superficial objections, I don't understand what it's saying enough to actually evaluate in depth. But I don't understand why these don't show up on lists of "common objections and rebuttals". Common objections have confident rebuttals in several places, and I've *seen* articles about them, but not understood well enough. Can anyone explain better?

Digression

I do agree, the idea that QM equations are an emergent property of something else, ideally a statistical interpretation of a deterministic underlying reality, would be very nice in clearing up a lot of confusion. But AFAIK, the closest candidate to that is Many Worlds, which doesn't appeal to many people who want to get away from QM unpleasantness.
August 14th, 2017
ewx: (Default)
posted by [personal profile] ewx at 06:05pm on 14/08/2017 under
 

Things I attended included...

  • Appeal of the Bland Protagonist. I remember only that Robert Silverberg was fairly entertaining.
  • The Long Term Future of the Universe & How to Avoid It. I don’t think we got as far as proton decay. Entertaining but I don’t think I learned much.
  • Polyamorous Relationships in Fiction. I think a fair few examples given but I don’t really remember much about this.
  • What Science Can Tell Us About Alien Minds. This was largely a very well-pitched survey of what we know about minds and brains and their development here, with the implications for the alien underlined. Excellent.
  • New, More Diverse Superheroes. Something that’s been improving lately. Many of the examples were familiar. Slightly surprised that Vimanarama wasn’t mentioned, it can’t be that obscure?
  • How to Tell the Ducks from the Rabbits. This covered some unpublished research modelling some perceptual effects we find in human vision. Ian Stewart is a good speaker.
  • Cyberpunk and the Future. Fairly rambling but quite entertaining and IIRC avoided the trap of falling into a laundry list of recommendations which can sometimes happen.
  • New Publishing. A couple of models I didn’t know about (though ‘run publisher as a co-operative’ doesn’t seem conceptually new) but I didn’t get a sense that any particular model was about to set the world on fire. Apparently ebook sales are declining as a proportion of the total, which surprised me.
  • Supermassive Black Holes. A quick survey of how black holes work (which didn’t contain many surprises) followed by some new stuff: the GR-aware visualization of a black hole made for Interstellar, corrections to it involving red/blue shifting and the spin of the black hole, a further visualization of what you’d see as you flew into one (assuming you destroyed by any of the many hazards) and a project to radio image out galaxy’s central black hole. Another excellent science talk.
  • Hugo Awards. Very glad to see Monstress winning Best Graphic Story.
  • Beyond the Goldilocks Zone. Panel about the possibilities for exoplanets that sustain life. One point I’d not previously been aware of was that although Europa-style bodies might (hypothetically) have life in sub-ice oceans, there’s no realistic way of detecting this from a distance, meaning that more earth-like planets are a better bet for analysis. (The “goldilocks zone” is the range of distances from a given star in which planets can support liquid water on their surface, making them a good bet for life.)
  • Gender and “Realistic History”. The panel largely surveyed past examples of groups and behaviors sometimes thought to have been absent or rare in the past. Interesting listening.
  • Exoplanetary Zoo and The Search for Earth 2.0. Another excellent science talk, this time on the detection strategies for exoplanets and the results they’ve had so far. There are a lot of exoplanet discoveries awaiting confirmation.
  • Language Creation. David Peterson (famous for the conlangs from Game Of Thrones) described the basics of making a convincing sketch conlang. A very entertaining speaker.
  • The Singularity: Transhuman Intelligence in Fiction and Futurism. An opportunity for Charlie Stross to steal the show. Fun.
  • Bullets in Space. Basic orbital mechanics, done fairly well. The basic proposition is that ballistic projectiles are a terrible idea when fighting in an orbit; if they miss the target they are probably going to hit something you didn’t want them to.
  • Tomorrow’s Cool SF Physics. Enjoyed it but don’t remember anything else about it.
  • Designing Life. Fun discussion of biotechnological possibilities for modifying and creating life.
  • Ideas Crossing the World: Japanese Adaptations of Western Fantasy. In practice I think this mostly amounted to an opportunity for the panellists to entertain with their encyclopaedic knowledge of manga and anime.

...there were other things but I can’t remember enough to say anything about them.

August 13th, 2017
hilarita: trefoil carving (Default)
posted by [personal profile] hilarita at 03:00pm on 13/08/2017 under
A little light relief from the main game. Won the Ziggurat Sprint, with a Troll Fighter of Uskayaw.
Read more... )
August 12th, 2017
fluffymormegil: @ (Default)
posted by [personal profile] fluffymormegil at 05:32pm on 12/08/2017 under ,
Open to: Registered Users, detailed results viewable to: All, participants: 3


Which broadcast version of the Doctor Who theme do you prefer?

View Answers

Delia Derbyshire
1 (33.3%)

Peter Howell
1 (33.3%)

Dominic Glynn
0 (0.0%)

Keff McCulloch
0 (0.0%)

Murray Gold
0 (0.0%)

A specialty variant which I will mention below
1 (33.3%)

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